In the datura plant, purple flower color is controlled by a dominant allele P. White flowers are found in plants homozygous for the recessive allele p. Suppose that a purple-flowered datura plant with an unknown genotype is self-fertilized and that its progeny are 28 purple-flowered plants and 10 white-flowered plants.

Part A

Use the results of the self-fertilization to determine the genotype of the original purple-flowered plant.

a. Pp
b. PP
c. pp

Part B

If one of the purple-flowered progeny plants is selected at random and self-fertilized, what is the probability it will breed true?

a. 1/3
b. 1/4
c. 3/4
d. 2/3

Answer:

Option B. Sequence the aniridia and eyeless DNA sequence and regulators.

Explanation:

DNA sequencing:

It is the method of determining the sequence of nucleic acid. DNA sequence includes the method to determine the order of nucleotide sequences. Through the process of sequencing aniridia and eyeless DNA are sequenced and analysed on Gel electrophoresis. Sequencing similarity shows evidence that the two genes are functionally equivalent.

Best choice:

B. Sequence the eyeless and aniridia DNA sequence and regulators.

The experiment could provide evidence that the two genes are functionally equivalent - D. Introduce the mouse aniridia wild-type sequence into the fly to see whether fly's eyes develop.

is a human condition in which the eye has no iris.

Thus, The experiment could provide evidence that the two genes are functionally equivalent - D. Introduce the mouse aniridia wild-type sequence into the fly to see whether fly's eyes develop.

Learn more:

https://brainly.com/question/1893853

Answer: D.the parotid gland

Explanation:

The innervation of the parotid gland is by auriculotemporal nerve  and great auricular nerve  as sensory innervation , and  

the  parasympathetic innervation originated from glossopharyngeal nerve;which  synapse with otic ganglion;from this end point(the ganglion) the auriculotemporal nerve conduct parasympathetic fibres  to the  parotid gland.

The superior cervical  ganglion , innervated the parotid gland as the sympathetic innervation. It travels along  the  external carotid artery to reach the parotid gland.

therefore PAROTID GLAND IS NOT INNERVATED BY VAGUS NERVE.

All other options in the questions are innervated by the vagus nerve.

Vagus nerve has the longest  branch of all the cranial nerves, which extends from the  brain to the abdomen. As it exist the jugular  foremen  , it innervates the head, the neck and abdomen  to supply the above options a-c

The vagus nerve, which is part of the parasympathetic nervous system, does not innervate the parotid gland; instead, the parotid gland is innervated by the glossopharyngeal nerve.

The vagus nerve does not innervate the parotid gland. The vagus nerve is a crucial part of the parasympathetic nervous system, which controls the function of many internal organs. The vagus nerve innervates structures such as the kidneys, gallbladder, and the pancreas. In particular, to the pancreas, the autonomic nervous system controls the secretion of insulin and glucagon, indicating that both sympathetic and parasympathetic nerve endings are found in pancreatic islets. Parasympathetic neurons, which are part of the peripheral nervous system and include the vagus nerve, leave the central nervous system via cranial nerves or sacral regions of the spinal cord. These neurons synapse in ganglia that are very close to the organs they innervate. The parotid gland, however, is innervated by the glossopharyngeal nerve, not the vagus nerve.

Answer:

[tex]27.8[/tex] mL of oxygen in [tex]100[/tex] ml of blood

Explanation:

It is proven that a healthy human being has in general [tex]20[/tex] grams of hemoglobin in  [tex]100[/tex] milliliters of blood.  

It is given that -

Amount of oxygen found in [tex]1[/tex] grams of hemoglobin is equal to [tex]1.39[/tex] milliliters of oxygen.

Thus, the total amount of oxygen in milliliters would be equal to product of total weight of hemoglobin and the total amount of oxygen in ml in one gram of hemoglobin.

[tex]= 20 * 1.39 \\= 27.8[/tex] mL

Answer:

(B) DNA polymerase I synthesizes DNA on lagging strands and DNA polymerase III synthesizes DNA on leading strands

Explanation:

Both the enzymes DNA polymerase I and DNA polymerase III involved in the process of DNA Replication with specialised functions. DNA polymerase I synthesize DNA on lagging strand where it degrades RNA primer and replace it with DNA. On the other hand, DNA polymerase III synthesize DNA from 5' to 3' end on the leading and lagging strand but stops at the RNA Primer.

Answer:

 DNA polymerase I synthesizes DNA on lagging strands and DNA polymerase III synthesizes DNA on leading strands

Explanation:

Answer: Option E - One of the animal’s major body axes would fail to develop normally.

Explanation:

Cytoplasmic determinants help the organs of the embryo to develop.

Hence, absence of cytoplasmic determinants would result in one of the animal’s major body axes failing to develop normally.

Answer: Electron transfer in the ETC is coupled to proton transfer from the matrix to the intermembrane space.

Explanation:

The energy generated by the movement  of electrons through protein carriers at different energy levels(ETC)  is used to pump protons across the intramembrane to the matrix. Thus, if the electron transport stops, protons pumps stops, ATPs synthesis by the ATP-synthase stops

This shows a coupled reaction

Answer:

The atmospheric pressure goes on decreasing as we go up above the sea-level. Therefore, the amount of oxygen also decreases at higher altitude. Due to this reason, mountaineers carry oxygen cylinders with them, while climbing high mountains

Explanation:

Answer: option C) cowpox and smallpox are caused by the same virus

Explanation:

Cowpox is a skin disease that affects cattle. It is caused by an Orthopoxvirus, with lesions occurring principally on the udder and teats of the animals.

Human infection may occur from touching infected cows, and thus giving immunity to smallpox (an acute infection caused by the same poxyvirus, in HUMANS)

So, Jenner's successful use was because cowpox and smallpox are caused by the same virus

Answer:

a change in the species composition of a community

Explanation:

Answer:

B: A change in the genetic makeup of a population

Explanation:

Evolution can be defined as any net directional change or any cumulative change in the characteristics of organisms or populations over many generations. It explicitly includes the origin as well as the spread of alleles, variants, trait values, or character states.

Answer:

In the presence of arsenate glycolysis produces fewer ATP and NADH molecules per glucose molecule.

Explanation:

it is supposed to be 2 molecules of 3-phosphoglecerate with each producing 2 ATP making a total of 4 ATP gain but since it is just one and arsenate, only 2 ATP will be generated instead of four, thus ATP yield is reduced.

Answer:

b) Operons for coordinated gene expression

Explanation:

Operon refers to a unit of genetic function and is mainly found in bacteria and phages. An operon consists of a promoter, an operator, and a coordinately regulated cluster of structural genes. The genes of an operon code for proteins or enzymes that mostly function in a common pathway. It allows a single promoter and operator or any other regulatory sequence to regulate the expression of functionally related genes.

For instance, lac operon consists of three structural genes that code for the enzymes involved in the catabolism of lactose sugar. The operon is expressed only when lactose is available in the medium. This pattern of gene regulation is not found in eukaryotes.

Aminoacyl-tRNA synthetases ensure the correct amino acid is attached to the appropriate tRNA through mechanisms such as the high specificity of the active site and the proofreading features of some synthetases.

Aminoacyl-tRNA synthetases ensure that the correct amino acid is attached to the appropriate tRNA by using specific mechanisms. One mechanism is the high specificity of the active site in each aminoacyl-tRNA synthetase for the correct amino acid substrate. The synthetase binds to its cognate tRNA and recruits the correct amino acid to the enzyme's active site. Another mechanism is the proofreading feature in some aminoacyl-tRNA synthetases that recognizes and hydrolyzes incorrect amino acids to ensure the correct one is attached.

Answer:

false

Explanation:

because enzyme has specific active site

Answer:

True

Explanation:

Enzymes works by binding with chemical reactants called substrates. There may be one or more substrates for each type of enzyme, depending on the particular chemical reaction.

Answer: A. it is unclear whether or not warming of the planet is occurring

Explanation:

Climate change is a more accurate description of the increase in Earth’s temperature than "global warming," because it is unclear whether or not warming of the planet is occurring, which is present in Option A.

When the climate, such as the temperature, humidity pattern, and rain pattern, changes, this is referred to as climate change; however, global warming refers to the increase in global temperature, which does not fully explain the changed environment on Earth. Many biodiversities on Earth are affected by climate change: the seashore changes, rain patterns change, habitats change, and it is all due to climate change.

Hence, climate change is a more accurate description of the increase in Earth’s temperature than "global warming," because it is unclear whether or not warming of the planet is occurring, which is present in Option A.

Learn more about climate change here.

https://brainly.com/question/28779953

#SPJ5

Answer:

A. 38 mol of ATP is yielded during aerobic oxidation of glucose while only 2 ATP is yielded during anaerobic oxidation of glucose. This will cause the yeast cell to need 19 times more glucose anaerobically and to need less glucose aerobically.

(b) DNP is going to block the major step in aerobic ATP production causing the yeast cells to use about the same amount of glucose as anaerobic cells when compared to yeast cells without DNP present

Answer

After inland population after migration allele frequency is 0.62 or 62%

Explanation:

Given,  

Coastal striped phenotype freq. = 0.22

ss = 0.22

[tex]q_{coastal} \times q_{coastal} = 0.22[/tex]

[tex]q_{2 coastal}[/tex]= 0.22

Similarly, inland striped phenotype freq. = 0.43

[tex]q_{2inland}[/tex] = 0.43

[tex]q_{coastal} = \sqrt{q_{2coastal}}[/tex]

= [tex]\sqrt{0.22}[/tex]

= 0.4690

[tex]q_{coastal}[/tex]= 0.47 i.e. 47%

[tex]q_{inland} = \sqrt{0.43}[/tex]

= 0.655

[tex]q_{inland}[/tex] = 0.66 i.e. 66%

the migration range (m) is given as 20%

m= 0.2

allele freq. after migration = pre migration + ∆q

here,                  

∆q = change in the allele frequency

or                    

migration of allele freq. from coastal to inland

=[tex]m(q_{coastal} - q_{inland})[/tex]

= 0.2 (0.47 – 0.66)  

=[tex]0.2 \times (- 0.191)[/tex]

= - 0.0382    

∆q = -0.04   i.e. 4%

Final answer:

In population 1, genetic drift likely caused the change in allele frequencies, while in population 2, natural selection likely caused the change.

Explanation:

In population 1, the change in allele frequencies is likely caused by genetic drift. Genetic drift is the random change in allele frequencies due to chance events, and it is more likely to occur in smaller populations, where chance can have a larger impact. The small population size and the fact that only half of the individuals reproduce suggest that genetic drift played a role in the change in allele frequencies in population 1.

In population 2, the change in allele frequencies is likely caused by natural selection. Natural selection is a process where certain traits or alleles are favored due to their beneficial effects on survival and reproduction. The larger population size and the fact that there is differential reproduction depending on the traits suggest that natural selection played a role in the change in allele frequencies in population 2.

Answer:

Absolutely, Genetic Polymorphism is observed

Explanation:

In genetics, Polymorphism refers to the regular existence of two or more different genotypes within a given species or population.

Definitely, the Clover leaf as described above exhibit genetic Polymorphism, bearing that the existence of the 3 genotypes: AA, Aa, and aa in Same species of Clover has been observed.

Note that this condition occurs because that natural selection is unable to pick a single trait above another; thus diverse phenotype of Clover leaves are observed.

Answer:

yes . A approximately equals to T and G approximately equals C in average.

Explanation:

according  to Chargaff's equivalence rule

the number and concentration of adenine is similar to the number of thymine and number of guanine is similar to that of cytosine in the DNA.

so according to conditions given in the question i.e average amount of A should be equal to average amount of T and total average amount of G in every genome on Earth should equal the total average amount of C . so Chargaff's equivalence rules still hold true when you consider those six species together.  

Answer:

The correct answer will be option-C

Explanation:

The autonomic nervous system is the system of the nerves which controls the automatic response of the body.

The ANS is categorized into two types one of which is the parasympathetic and sympathetic nervous system.

The parasympathetic nervous system gets activated in the relax conditions by producing hormones that relax the human mind and body.

The sympathetic nervous system is activated in the stress conditions which produces hormones which response wither in fight response or flight response.

Since these types show antagonistic approaches in the body, therefore, Option-C is the correct answer.

Answer:

maybe for me is answer is c

The characteristic related to sterile mules does not affect fitness since they cannot pass on their genes. Other characteristics either increase or decrease fitness based on survival and reproduction advantages or disadvantages.Option c is correct.

Let's analyze each characteristic with respect to how they affect fitness:

Therefore, the characteristic that would NOT increase or decrease the fitness of the organisms that possess it is related to sterile mules (option c).

The development of specialized cells and cellular cooperation made it possible for more complex, multicellular organisms to exist.

The evolutionary milestone that made it possible for more complex, multicellular organisms to exist was the development of specialized cells and cellular cooperation. As cells started to live together in colonies, some cells began to specialize in performing different functions, making the colony more efficient. This specialization allowed the cells to remain small while still carrying out specialized tasks, leading to the evolution of multicellular organisms. These organisms were bigger, more efficient, and capable of performing more complex functions than single-celled organisms.

Final answer:

The development of eukaryotic cells, cell specialization within colonies, and sexual reproduction were pivotal milestones in the evolution of multicellular organisms which led to the diverse array of life we see today.

Explanation:

The evolutionary milestone that made it possible for more complex, multicellular organisms to exist was the development of eukaryotic cells and later the advent of colonial organisms and cell specialization. Eukaryotic cells, which emerged about 2 billion years ago, have more complex structures like a nucleus, allowing for greater control over cellular functions. Another key development was the emergence of sexual reproduction over 1 billion years ago, which led to increased genetic variation and the potential for greater evolutionary adaptation.

As single-cell eukaryotes started forming colonies, some cells in these colonies began specializing in different functions. These specialized cells could perform tasks more efficiently, benefitting the organism as a whole and setting the stage for the evolution of true multicellularity. True multicellular plants appeared about 1 billion years ago, and true animals followed roughly 100 million years later.

Ultimately, these developments laid the foundation for the Cambrian Explosion, a period of rapid evolution around 540 million years ago during which most major animal phyla appeared. Multicellular life evolved over time through an increase in biodiversity and complexity. Organisms like Volvox illustrate the progression from solitary eukaryotic cells to more complex multicellular structures.

Answer:

Yes bacteria can survive if heating process is inadequate.

Explanation:

Most of the canned food is spoiled by thermophilic and mesophilic bacteria. These bacteria can survive the canning process if the can is inadequately heated. Most of them are able to produce gas which can cause bulging of can.

Clostridium species are mainly involved in the spoilage of canned food. C. thermosaccharolyticum is a thermophilic bacteria which spoil can food and evolve CO2 gas that cause bulging of can. Example of mesophilic bacteria that cause spoilage and swelling of can are C. botulinum, C. puterifaciens, etc.

Therefore thermophilic and mesophilic bacteria can survive the canning process if heat treatment and the temperature are not adequate.

Final answer:

Bacteria such as Clostridium botulinum could survive improper canning procedures, germinate in an anaerobic environment, and produce gas, causing the can to bulge, indicating possible botulinum toxin presence.

Explanation:

Yes, bacteria in the can could have survived the canning process and caused the sides to bulge. This is often due to the presence of anaerobic bacteria such as Clostridium botulinum, which can survive in low-oxygen environments like a sealed can. If the canning process was not properly conducted, the spores of such bacteria could remain viable, and when conditions inside the can become anaerobic, these spores can germinate and produce gas as a byproduct of their metabolism, resulting in the bulging of the can. This scenario is also a potential sign of the presence of botulinum toxin, which is highly toxic. It's important that the restaurant owner disposes of these cans safely and reviews their canning procedures to prevent potential foodborne illnesses.

Answer:d. They were similar to modern humans but with a narrow, Homo erectus–like nasal aperture.

Explanation:

Gran Dolina adult hominids were more advanced than Homo erectus, with a wide nasal aperture similar to that of Homo sapiens supporting this fact. Their cranial capacity was not larger than that of Homo sapiens, and there is no evidence suggesting they produced art like later Homo sapiens. Moreover, their nasal aperture was wider rather than narrow like that of Homo erectus.

The correct answer would be option 'a'. Gran Dolina adult hominids were indeed more advanced than Homo erectus, resembling later Homo sapiens in having a wide nasal aperture. This is consistent with data suggesting that these individuals were an intermediary between Homo erectus and later Homo sapiens. Such anatomical features place Gran Dolina adult hominids closer in affinity to modern humans than to Homo erectus.

However, they were not as modern as Homo sapiens in other aspects. For example, their cranial capacity was not larger than that of later Homo sapiens (option b), and there is no evidence suggesting that they were capable of producing art as spectacular as that of later Homo sapiens (option c).

Moreover, while they were similar to modern humans in many respects, they did not have a narrow, Homo erectus-like nasal aperture (option d). Instead, as mentioned earlier, they had a wide nasal aperture.

https://brainly.com/question/32417233

#SPJ11

The answer is option A "To prove that your work is correct." When you let peers review your work its making sure that your results/data are correct. When doing experiments to make sure that your results are valid you would do trials on top of that have your peers repeat the experiment with their own trails to make sure the data you get is correct.

Hope this helps.

Answer:

It probably get pink because it has 1/2 chance it has 1/4 change of being white and 1/4 chance of being red

Explanation:

Answer:

C) igneous, sedimentary, and metamorphic rock.

Explanation:

Every rock can become a metamorphic rock (ignorant, sedimentary, or metamorphic). Once rocks are buried deep within the Earth at extreme temperatures and pressures, they can form new materials and textures without melting. As melting happens magma is formed,  beginning the rock cycle again.

Hence, option C is correct

Answer:

C

Explanation:

Metamorphic rocks form from igneous, sedimentary, and metamorphic rock. The agents that change pre-existing rocks are heat, pressure, and chemical activity. Sediments form sedimentary rocks; magma forms igneous rocks.

Answer:

CUU, CUC, UUG, UUA

Explanation:

Following codons result in leucine amino acid : UUA, UUG, CUU, CUC, CUA and CUG

Following codons result in phenylalanine amino acid : UUU and UUC

Answer:

Option D.

Explanation:

Both genes are linked to X chromosome. They are  recessive diseases and a heterozygous gene, which means that two different forms of a particular gene are inherited, one from each parent.

CB : Color blindness carrier, healthy

H: Hemophilia carrier, healthy

h: Disease

cb: Disease

Mom: X(CB/H) X(cb/h) (carrier)

Dad: X(cb/H) Y (color blind man, and  dominant for hemophilia - healthy)

Let's make a table

MOM/DAD |  X(CB/H) X(cb/h)   |

X(cb/H)Y    |   X(cb/H) X(CB/H)  |   Healthy girl for H, carrier for cb

X(cb/H)Y    |   X(cb/H) X(cb/h)   |    Healthy girl for H, sick for cb

X(cb/H)Y    |   Y  X(cb/h)    |  Boy sick for cb and h  

X(cb/H)Y    |   Y  X(CB/H)    |  Boy healthy for CB and H

1 probable case, over 4 possible cases

Answer:

The frequency of the allele is  high in  the  population

Explanation:

The selective pressure in this population is low light. Thus only plants with high tolerance for low light will be able to survive in this population. LLT gene plant has this trait.

Therefore the LLT gene plants  will have  higher rate of survival compare  to other clones at very low light intensity .

The frequency of expression of these gene will be high due to high survival rates in the population.

Answer:

Explanation:

Number 1: The answer is A; Ariginase is responsible for the release of urea as product.

Number 2: The answer is B; Argininosuccinate synthetase requires ATP.

Number 3: The answer is D; Arginase is located in the mitochondrion

Number 4: The answer is B; Ornithine produced in the cytosol must first cross the inner mitochondrial membrane into the mitochondrial matrix where it is carbamylated