What changes would you recommend to permit expression of this eukaryotic gene in a bacterial cell?

Answers

Answer 1

Gene Expression is the progression wherein the information from a gene is used in the combination of a functional gene product. In eukaryotic cells, genes are delimited by repressors as well as by transcriptional activators. The repressors will muddle to the specific DNA sequences and will constrain transcription.

Related Questions

In an ocean ecosystem, which is necessary to begin a food web?

Answers

I believe that phytoplankton is necessary to begin a food web

Answer:

Phytoplankton

Explanation:

Formed by unicellular eukaryote microalgae, phytoplankton is defined as the portion of planktonic organisms capable of photosynthesis, constituting the basis of the food chain in aquatic ecosystems. For this reason, we can say that in an ocean ecosystem, phytoplankton production is necessary to start a food chain.

Phytoplankton are composed of individuals from different taxonomic groups that have some common characteristics: they all have individualized nucleus and complex organelles in their cytoplasm, as well as photosynthetic pigments (chlorophyll a, b, carotenoids). These organisms, predominantly autotrophic, can also ingest particles, being characterized in some cases as myxotrophic.

1. Would you expect endangered species to be more frequently generalists or specialists?

Answers

Generalists are species that can thrive in many different kinds of environments and can feed on a varied diet. On the other hand, specialists require specific or special kinds of environments and diets for them to live, reproduce, and thrive. Because of their nature, specialists tend to less likely be able to adapt to changes in their environment. Inability to adapt would eventually lead to their deaths or their inability to reproduce, reducing the population of their species. Thus, endangered species are more frequently specialists.

Is it possible for two alleles to produce four phenotypes?

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Yes the multiple alleles produce more than three phenotypes.

Yes, two alleles can contribute to multiple phenotypes through multiple allele inheritance and dominance hierarchies, allowing for a variety of phenotypic expressions beyond the simple dominant-recessive relationships originally described by Mendel.

It is possible for two alleles to contribute to multiple phenotypes if there are dominance hierarchies among multiple alleles at a single gene locus. This is known as multiple allele inheritance.

When discussing multiple alleles in a population, it is important to note that while an individual organism can only have two alleles for a gene (one from each parent), a population may have many alleles for a single gene. Some alleles might be dominant, others recessive, and some may even show incomplete dominance or co-dominance.

In the case of a gene with four different alleles, these can interact in various ways to produce a spectrum of phenotypes. For example, in rabbits, the coat color is determined by multiple alleles of the c gene. The wild-type allele is dominant to all other alleles, chinchilla is incompletely dominant over the Himalayan and albino alleles, and so forth. Therefore, the phenotype of progeny resulting from crosses between any pair of the four mutants will depend on the dominance hierarchy of these alleles.

To answer the original question, two alleles can influence more than two phenotypes if there are multiple alleles at the population level and varying dominance relationships among those alleles.

The compound formed has a(n) ___________ bond and is a(n) _________________. A) ionic; crystalline solid B) covalent; amorphous solid C) metallic; crystalline solid D) covalent; crystalline solid

Answers

the answer is A)ionic,crystalline solid

I believe .. A ionic and crystalline solid !

Compression fractures associated with osteoporosis of vertebral bodies can distort the normal thoracic curvature of the vertebral column in a posterior direction. such a distortion is called

Answers

Curvature of the spine can be caused by fractures in people with osteoporosis. Kyphosis is the condition in which the spine curves toward the back. It is also known as 'Dowager's Hump."

Why were you able to see the dna after adding ethanol? what chemical process led to the visible masses of dna?

Answers

The chemical process is called precipitation.

Usually, a combination of salt and ethanol are added to a solution in order to allow the DNA to precipitate or come out of solution.

Polar molecules are those with uneven distribution of charges in their structure, which gives them partial positive and partial negative parts in their structure. In general, the rule in solubility is "like dissolves like," which means that polar or charged solutes can dissolve in a polar solvent. Ionic and polar solutes which are "attracted" to and dissolve in water are called "hydrophilic" (water-loving), while nonpolar solutes, which do not dissolve in water are called "hydrophobic" (water-fearing or hating).

DNA has a sugar-phosphate backbone in its structure. The phosphate (PO3-) groups of the backbone are negatively charged. Water, being a polar molecule (with the oxygen end being more negatively charged, and the hydrogen ends being more positive), can interact with the negatively-charged phosphate groups of the DNA and allow the DNA to dissolve in water.

When salt (usually sodium acetate) is added, the positive ions of the salt (e.g. Na+ for sodium acetate) interact with the negatively-charged ends of the phosphate groups (PO3-) in the sugar backbone. This "neutralizes" the charges of the negatively-charged phosphate groups. As a result, the amount of water molecules able to interact with the phosphate groups diminishes, and this lessens the solubility of the DNA.

However, because water has a relatively high dielectric constant (index of polarity), it would be fairly difficult for the Na+ ions to interact with the PO3- groups. Adding the ethanol, which has a lower dielectric constant than water, makes it easier for the Na+ ions to come together with the PO3- groups, and shields it charge from the water molecules. This makes the DNA molecules less hydrophilic and less soluble. As a result, the DNA molecules come out of solution (through a process called precipitation).

What do the properties of waves moving through aquatic environments tell us about the organisms living in those environments?

Answers

Aquatic organisms greatly depend on the abiotic actors of an aquatic environment. Waves moving through the aquatic environment also influence the organisms living there. Depending upon the tidal zones, the organisms varies. Many aquatic organisms grow well in the intertidal zone can live in dry environment for a longer period of time. These organisms are also well adapted to withstand the damages that might be caused by the repeatedly pounding wave actions. Such organisms have tough exoskeleton (strong shell) to protect them from wave damage.
Some coastal plants are firmly attached to the rocks o that these are not torn away by the wave action. These plants have small, tough feather-like leaves.

Which of the following best describes the interaction between Earth’s crust and living organisms?
a.
Raw materials essential for life are cycled through Earth’s crust.
b.
Fossil fuels are a valuable energy source for the biosphere.
c.
The continental crust allowed the evolution of life on land.
d.
The crust recycles the organic materials in sedimentary rock.

Answers

"Raw materials which are essential for life are cycled through the Earth's crust"

Answer: b. Fossil fuels are a valuable energy source for the biosphere.

Explanation:

The living organisms are dependent upon the earth crust for their food and resource needs. The earth crust is mined for a variety of inorganic and organic reserves like minerals, fossil fuels like petroleum, gasoline, natural gas and coal. The fossil fuels are non-renewable resources which are produced after million's of years the complete degradation and decomposition of the organic matter of dead animals and plants. This act as source of energy by the living organisms in biosphere.

The centrosomes replicate in what phase

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S phase of interphase where the DNA replication takes place.

What is the expected effect of hyperventilation on heart rate? why does this change occur?

Answers

The heart rate will increase. This is due to the increase in the carbon dioxide levels in the blood associated with faster respiration. To allow more blood to reach the brain, the heart has to speed up to keep up with the rate of movement of the blood.

Drag each tool below into the box corresponding to the step in the dmaic cycle where it is most likely to be used.

Answers

I found the exercise on the internet and the tools are organised below into their corresponding step of the DMAIC cycle.

Define (articulate the problem, objectives, resources, project, etc):

-Quality Circles

-Flow charts

Measure (collection of data, establish base lines for improvement):

-Pareto Charts

-Check Sheets

Analyse (identify, validate):

-Cause-and-effect diagrams

Improve (test and implement solutions):

-Brainstorming

Control (monitoring improvements and ensure continuing success):

-Control Charts for new Process

Why do people with “inherited cancer” often develop cancer at a relatively young age

Answers

Environmental cancer is usally the result of damage to the cells caused by the environment. This damage accumulates over the life of a person. Inherited cancer is the result of genetic abnormalities present at birth. Since there is no need for damage to accumulate, the cancer develops earlier.

If it is not watered, a tulip plant wilts because it

Answers

It loses Turgor Pressure, hope this helped :)

Final answer:

A tulip plant wilts when it is not watered because it loses turgor pressure and cannot properly perform photosynthesis. Watering restores turgor pressure and enables photosynthesis.

Explanation:

Turgor pressure is the force within the cell that pushes the plasma membrane against the cell wall, and it is chiefly maintained by water. So, when a plant doesn't get enough water, it loses this pressure and starts to wilt.

Moreover, water is crucial for the plant's ability to perform photosynthesis. This process, which involves converting sunlight into chemical energy, requires water. When a tulip plant doesn't have enough water, it will stop photosynthesizing for extended periods until it has adequate water to resume doing so. Thus, watering the wilted plant restores both turgor pressure and its ability to photosynthesize.

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Why must predators in ecosystems with low npp cover huge ranges to survive?

Answers

NPP is the actual available energy that's produced by primary producers for other organisms to obtain energy from. When a predator lives in a ecosystem that has a low NPP, it means that the predator will have to cover a much wider range in order to have all the needed energy that's produced by those primary producers. If the there was a high NPP the need to search for those primary producers was much diminished as there would be enough energy available close by.

What three events occur during the light reactions of photosynthesis?

Answers

B oxidation of water, reduction of NADP+ , formation of ATP.C oxidation of water, recuction of NADP+ , hydrolysis of ATP.D fixation of carbon dioxide, release of oxygen, synthesis of glucose.E release of oxygen, fixation of carbon dioxide, hydrolysis of ATP.

"which part of the brain controls the autonomic nervous system?"

Answers

Final answer:

The hypothalamus is the key part of the brain that controls the autonomic nervous system, managing involuntary functions and maintaining homeostasis.

Explanation:Which part of the brain controls the autonomic nervous system?

The autonomic nervous system (ANS) manages involuntary functions such as heart rate, blood flow, and digestion. The hypothalamus is the primary structure in the brain that coordinates these functions. The hypothalamus integrates sensory information and cognitive processes to manage the ANS. It sends signals via the medial forebrain bundle and the dorsal longitudinal fasciculus to brain stem and spinal components of the ANS. This integration allows for the control of the lungs, heart, smooth muscle, and glandular functions without our conscious input. It is crucial for maintaining homeostasis in the body through its regulation of the sympathetic and parasympathetic nervous systems, which have often opposing effects to balance the body's internal environment.

How does the fast blast dna stain work to make the dna visible to the naked eye?

Answers

DNA fragments stained with Fast Blast DNA stain appear deep blue against a light blue background and are visible to the naked eye

Using what you've learned, propose some possibilities for how commensal species, in contrast to infectious species, might live with us in peaceful symbiosis. consider commenting on ways the immune system remains refractory to commensals, compared to pathogens. see grading rubric below.

Answers

Commensal bacteria are present in places that are exposed to the external environment (gastrointestinal, respiratory tract, vagina,mouth, skin). There bacteria live constantly with their hosts and only under specific conditions they are able to express pathogenic traits.
The immune system has mechanisms for tolerating these commensal micro-organisms but actively reacts with potentially pathogenic bacteria, inducing the accumulation of regulatory T (Treg) cells.
This is why there is a symbiotic relationship between the host and the microflora

The area of a myofibril where actin filaments attach to one another is the

Answers

the answer is the z line

What are the three main concerns with nuclear energy?

Answers

Hello there,
As from what I can recall, I can remember 4 concerns regarding nuclear energy
1) Storing radioactive waste
2) Safety
3) Weapons proliferation and terrorism
4) Health

Hope this helps ;))

~Top

Are factors related to climate, such as rainfall and temperature, biotic, or abiotic factors?

Answers

biotic means resulting from living things usually because of their ecological reactions, abiotic is more physical than biological it isn't from a living organism.

So the weather is abiotic

Abiotic factors are those that are non-living aspects of the habitat of living organisms that affect them and the ecosystems' dynamics. Without abiotic factors, biology could not be - they may impact organisms in their reproduction, growth, and maintenance.
Examples of abiotic factors may include water, tides, light, pressure, radiation, humidity, soil constitution, and others such as the ones mentioned on the question - rainfall and temperature.

If oxygen is not available to a muscle cell, pyruvic acid is changed to ____ and builds up in the muscle cell.

Answers

The reduction of pyruvate forms a molecule called LACTATE. When human muscle cells doesn’t consist enough oxygen to convert organic molecules into ATP through cellular respiration, then it is called LACTIC ACID FERMENTATION. Instead of entering the mitochondria and being converted to acetyl CoA, pyruvate is reduced an electron is given, which is also a product of glycolysis.

John and sue are expecting a child, but are concerned about a rare autosomal recessive disease that is present in both of their families. in the pedigree below, john is represented as individual iii-11 and sue is represented as individual iii-12. john\'s sister, iii-10, and sue\'s brother, iii-13, both do not show evidence of the disease, but john\'s paternal grandmother and sue\'s maternal grandfather both had the disease. assign the appropriate symbol to each individual in the pedigree.

Answers

Attached is the pedigree. I found the exercise on the internet.

The individuals that are missing a symbol are: II-5, II-6, II-8, III-10, III-11, III-12, III-13.

The individual II-5 would have the half black/half white square. A square because in the introductory text says that it's John's paternal grandmother (I-2) that has the disease. Half black/half white because his mother had the disease so she passed one allele that's necessarily a disease allele, and his father doesn't carry the disease or manifest it which means that from him, John's father (II-5) only received a normal allele.

The individual II-6 would have a question mark in a circle. A circle because she is John's mother once his father is the individual II-5. A question mark because we don't have information as for the manifestation of the disease in her, though we do know that she is either a carrier of the disease or inflicted by the disease because she has a daughter (John's sister) that has the disease meaning that John's sister received two alleles for the disease.

The individual II-8 would have the half black/half white circle. A circle because she is Sue's mother once her father is the individual II-7 (a square). Half black/half white because her father had the disease so he passed one allele that's necessarily a disease allele, and her mother doesn't carry the disease or manifest it which means that from her, Sue's mother (II-8) could only received a normal allele.

The individual III-10 would have a question mark in a circle. A circle because she is John's sister as said in the introductory text. A question mark because we can't affirm whether she is a carrier of one disease allele or does not carry the disease at all. We know by the introductory text that she doesn't have any signs of the disease but she could've have received a disease allele from her father or her mother if her mother is simply a carrier of one disease allele, or would definitely received a disease allele from her mother, and not from her father, if her mother has the disease.

John, the individual III-11 would have a question mark in a square. A square because is John, a male. A question mark because we can't affirm whether he is a carrier of one disease allele or does not carry the disease at all. We gather, by the introductory text, that he doesn't have signs of the disease but he could've have received a disease allele from his father or his mother if his mother is simply a carrier of one disease allele, or would definitely received a disease allele from his mother, and not from his father, if his mother has the disease.

Sue, the individual III-12 would have a question mark in a circle. A circle because is Sue, a female. A question mark because we can't affirm whether she is a carrier of one disease allele or does not carry the disease at all. By the introductory text, we gather that she doesn't have signs of the disease, but she could've have received a disease allele from her mother, once her mother is a carrier of a disease allele, turning her into a carrier as well, or could've received the normal allele from her mother. From her father she only received a normal allele.

The individual III-13 would have a question mark in a square. A square because he is Sue's brother according to the introductory text. A question mark because we can't affirm whether he is a carrier of one disease allele or does not carry the disease at all. We know, by the introductory text, that he doesn't show any signs of the disease, but he could've have received a disease allele from his mother, once his mother is a carrier of a disease allele, turning him into a carrier as well, or could've received the normal allele from his mother. From his father he only received a normal allele.

From this information, John and Sue have a 25% probability (1 in 4) of having a child with the disease (aa), a 50% probability (2 in 4) of having a child who is a carrier (Aa), and a 25% probability (1 in 4) of having a child who is neither affected nor a carrier (AA). This is figured through a Punnett Square analysis of two heterozygous carriers (Aa x Aa).

In this, we are dealing with a pedigree that represents an autosomal recessive disease. Let's first understand the symbols used in a pedigree:

Squares represent males and circles represent females.A horizontal line between a male and a female indicates marriage or mating.Vertical lines connected by a horizontal line indicate siblings.Shaded symbols represent individuals who are affected by the disease.

In order to assign the appropriate symbols to each individual, we need to identify their genotypes. Since the disease is autosomal recessive, it means that the disease allele is represented by 'a', and the normal allele is represented by 'A'. Therefore:

AA (homozygous dominant) means the individual does not have the disease and is not a carrier.Aa (heterozygous) means the individual does not have the disease but is a carrier.aa (homozygous recessive) means the individual has the disease.

Given the information:

John (iii-11) and Sue (iii-12) do not show evidence of the disease but have a family history of it. Therefore, they are likely heterozygous carriers (Aa).John’s sister (iii-10), who does not show evidence of the disease, is likely also Aa, since the disease is present in the family but she herself is unaffected.Sue’s brother (iii-13) also does not show evidence of the disease and is likely Aa for the same reason as John’s sister.John’s paternal grandmother and Sue’s maternal grandfather had the disease, meaning they are aa.

With this knowledge, we can deduce the following genotypes:

iii-11 (John): Aa (heterozygous carrier)iii-12 (Sue): Aa (heterozygous carrier)iii-10 (John’s sister): Aa (heterozygous carrier)iii-13 (Sue’s brother): Aa (heterozygous carrier)John’s paternal grandmother: aa (homozygous recessive)Sue’s maternal grandfather: aa (homozygous recessive)

The idea that species evolve at a slow constant rate is called

Answers

evolution theory

It was elaborated by C Darwin

Answer: The correct answer is -

Gradualism.

Gradualism can be described as an evolutionary theory according to which evolution of organisms/species proceeds continuously at a slow and steady rate that is without any sudden formation of new biological features or sudden formation of new species from one generation to the next generation. The approach in which Charles Darwin proposed the emergence of new species (over many generations) from already existing species is attributed to gradualism.

In other words, species evolving at slow and constant rate is known as gradualism.

Which statement is an example of mutualism? Bees sting other organisms when they sense danger. Bees pollinate flowers while obtaining nectar. Bees have black and yellow stripes that warn other organisms of danger. Bees help maintain an ecosystem’s native cacti species through pollination. NextReset

Answers

i think the answer is the first one. mutualism is when two things benefit from each other, hope this helps! :)

2.Bees pollinate flowers while obtaining nectar is the answer

An advantage allowing the seed plant to greatly surpass the seedless vascular plants in colonizing the land was the evolution of:

Answers

An advantage allowing the seed plant to greatly surpass the seedless vascular plants in colonizing the land was the evolution of air-dispersed sperm in pollen grains.Pollen is produced by the gymnosperms (and flowering plants as well) as a package for the dispersal of sperm.

Question 1 vascular plants are divided into two main groups: seedless vascular plants, including ferns and club mosses; and seed plants. the seed plants are further divided into gymnosperms (seed plants that do not produce flowers) and angiosperms (seed plants that produce flowers). part a - gymnospe

Answers

Final answer:

Vascular plants are divided into seedless vascular plants and seed plants. Seed plants are further classified into gymnosperms (no flowers produced) and angiosperms (flowers and seeds produced). Examples include pines and fruit trees respectively.

Explanation:

Vascular plants are predominantly divided into two core groups: seedless vascular plants and seed plants. The seedless vascular group includes species such as ferns and club mosses. The seed plants are further classified into gymnosperms and angiosperms. Gymnosperms are plants that produce seeds but do not produce flowers, while angiosperms are plants that produce both flowers and seeds. Notable gymnosperms include pines and spruces, whereas examples of angiosperms include fruit trees and flowering plants.

Vascular plants are divided into two main groups: seedless vascular plants, which include ferns and club mosses, and seed plants. Seed plants are further divided into gymnosperms, which are seed plants that do not produce flowers, and angiosperms, which are seed plants that do produce flowers.

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Identify how a hormone molecule performs its function.

Answers

It's gets the function by creating a hormone

a hormone is any member of a class of signaling molecules produced by glands in multicellular organisms that are transported by the circulatory system to target distant organs to regulate physiology and behavior. hormones have diverse chemical structures, mainly of 3 classes: eicosanoids, steroids, and amino acid derivatives.

I hope this helps

In 1940 matthew and marion stirling found ________ at the site of ________.

Answers

In 1940 Matthew and Marion Stirling found basalt altars at the site of La Venta.

Matthew Stirling was an ethnologist and archaeologist that was sent on expeditions to the Mexican Gulf Coast area to further research the Olmec culture. It was in then years around 1940 that he found with his wife, Marion, several sculptures and monuments in that area. In 1940 he found several altars in La Venta.

Final answer:

In 1940, Matthew and Marion Stirling found a series of stone carvings and monuments at the La Venta site in Mexico. This site is significant in history because it was a major location of the Olmec civilization.

Explanation:

In 1940, husband and wife archaeologist team, Matthew and Marion Stirling, discovered a series of stone carvings and monuments at the La Venta site in Mexico. The La Venta site is notable for being one of the primary locations of the Olmec civilization, one of Mesoamerica's earliest and most influential cultures. The Stirling's findings at La Venta included upright stone monuments or 'stelae', altars, and large stone heads, which have since become iconic representations of the Olmec civilization.

In 1940, Matthew and Marion Stirling found artifacts at the site of Machu Picchu, a fifteenth-century Incan site located in Peru.

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One of the liver's main functions is to detoxify potentially toxic substances. Given this information, which organelle(s) would you expect liver cells to have in abundance? Explain.

Answers

Smooth endoplasmic reticulum would be abundant in liver cells because it detoxifies drugs and poisons from the body.

The organelles which are abundant in liver cells are endoplasmic reticulum helps liver to detoxify potentially toxic substances.

What is endoplasmic reticulum?

The endoplasmic reticulum (ER) is an intracellular organelle made up of a network of continuous membranes. The ER is highly active in protein modification, lipid metabolism, and xenobiotic detoxification in the liver.

Maintaining these complex processes necessitates meticulous control over the ER lumen environment as well as the ER volume.The endoplasmic reticulum can be smooth or rough, and its function is normally to produce proteins that allow the rest of the cell to function.

Ribosomes, which are small, round organelles that make proteins, are found in the rough endoplasmic reticulum. When those proteins are produced incorrectly, they can remain within the endoplasmic reticulum.

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