If 10% of the bases in a DNA sample are a (adenine), then the percent of the bases are t (thymine), is also 10% while g (guanine) and c (cytosine) will be 15 %
What is DNA?DNA stands for deoxyribonucleic acid. It is described as the molecule containing the genetic information required for a species to grow and perform its functions. These instructions are dispersed throughout 46 lengthy structures called chromosomes that are found inside each of your cells. Numerous smaller pieces of DNA, known as genes, make up these chromosomes.
If DNA contains 30% thymine and 30% adenine, a total of 60% would be present in the DNA. Cytosine and guanine are used to make the remaining 40%. In the DNA, cytosine and guanine each compose 20% of the nucleotides.
Thus, if 10% of the bases in a DNA sample are a (adenine), then the percent of the bases are t (thymine), is also 10% while g (guanine) and c (cytosine) will be 15 %.
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In which stage of the cell cycle are sister chromatids separated and pulled to the opposite poles of the cell?
In the hershey–chase experiment, dna was demonstrated to be the genetic material because the 32p label for dna localized to ________.
The nucleic acid _______ copies DNA so ________ can be made.
The nucleic acid RNA copies DNA so protein can be made.
NUCLEIC ACIDS:
Nucleic acid is one of the four biomolecules, which functions to store and transmit genetic information in living cells. The two nucleic acids in nature are RNA and DNA. RNA is the nucleic acid that conveys the information stored by DNA in order for it produce proteins. Protein synthesis occurs in the ribosome organelle, where RNA is translated. Therefore, nucleic acid RNA copies DNA so protein can be made.Learn more at: https://brainly.com/question/14771379?referrer=searchResults
Which example of artificial selection is caused indirectly by human activity?
A.)choosing sheep that enable offspring to give a large amount of wool
B.)mating goats that produce more milk
C.)selective mating among ducks to produce larger eggs
D.)increased number of small crabs because fishing nets catch mostly large crabs
Atom A has an atomic number of 19 and mass number of 40. Atom B has an atomic number of 20 and a mass number of 40. Which of these is an accurate statement?
A) Atom A has more protons than Atom B.
B) Atom A has one less proton and one more neutron than Atom B.
C) Atom A has an extra nucleon compared to Atom B.
D) Atom A has one more proton and one more electron than Atom B.
You're answer is B.
I know It's late.
__________ fats or lipids form animal body fat that is used for stored energy and insulation.
a.Hydrogenated
b.Reconstituted
c.Saturated
d.Unsaturated
Answer:
C
Explanation:
Saturated fats are usually solid at room temperature. This is why the fats in the body of animals are solid (the white mass under the skin and surrounding organs like the liver and heart). Saturated fats have such properties because their carbon chains have very few to no double bonds. Therefore their chains have no kinks that interrupt hydrogen bonding between adjacent chains. This helps the chains to stick tightly together increasing the boiling and melting point of these fats/lipids.
Plants, on the other hand, usually have unsaturated fats/lipids.
The answer is C.) Saturated
After a subtotal gastrectomy, a client has a nasogastric (ng) tube to continuous low suction. three hours after the surgery, the client complains of nausea and abdominal pain. the client's abdomen appears distended. the nurse should first:
The appropriate action that nurse should do first is to take note of the signs that can be a suspect of nasogastric tube blockage and that it is needed to instill about 30 ml of air in which will reestablish the patency. Next step is to also take note that the opioids used can increase nausea and abdominal detention and that it decreases peristalsis. The nurse should tell the client and notify them that there will be no stool for several days and that because of the surgery in which is also expected that there are no bowel sounds to be produced.
Final answer:
When a client post subtotal gastrectomy with an NG tube complains of nausea and abdominal distension, the nurse should first check the patency of the NG tube to ensure it's not blocked or kinked. Clearing the obstruction or adjusting the tube may relieve symptoms. If unsuccessful, the medical team should be notified.
Explanation:
The first step a nurse should take when a client complains of nausea and abdominal pain, with an appearance of a distended abdomen post subtotal gastrectomy with an NG tube set to continuous low suction, is to check the patency of the NG tube. A blocked or kinked NG tube can prevent the proper evacuation of stomach contents, leading to increased pressure in the stomach and intestines, which may cause the symptoms described. Ensuring the NG tube is functioning correctly can relieve the client's discomfort and prevent further complications.
If, upon inspection, the NG tube is confirmed to be blocked or malfunctioning, the nurse should attempt to clear the obstruction or readjust the positioning of the tube. If these efforts are unsuccessful, it's essential to notify the surgical or medical team immediately for further assessment and intervention. Early detection and management of postoperative complications such as tube obstruction can significantly improve patient outcomes.
A bursting forth of blood from the stomach is known as
A bursting forth of blood from the stomach is commonly related to a severe peptic ulcer that has caused gastrointestinal bleeding, often leading to hematemesis, which is the vomiting of blood.
A bursting forth of blood from the stomach is often related to a condition known as a peptic ulcer. This ulcer is a sore in the lining of the stomach, which can sometimes become severe enough to expose blood vessels and lead to bleeding, also known as gastrointestinal bleeding. Factors contributing to ulcer formation include the destruction of the gastric epithelium, leading to acid reaching the stomach wall. Furthermore, ulcers can be formed due to a variety of other reasons such as Helicobacter pylori infection, chronic use of nonsteroidal anti-inflammatory drugs (NSAIDs), or stress.
Emesis, or vomiting, can occur as a body's response to this condition, expelling blood along with stomach contents. Alarmingly, a severe ulcer can expose the wall of stomach vessels causing bleeding that can pose a threat to one's health. This loss of blood can result in what is known as a hematemesis, which is vomiting of blood that may appear as bright red or have a coffee-ground appearance due to partial digestion by acidic digestive juices.
Acute symptoms leading to these severe complications can be a burning sensation or pain in the upper abdomen, often worsening at night and improving with eating, as well as gastroesophageal reflux disease (GERD) which involves heartburn.
The sleep -wake cycle typically follows a 24 hour cycle and is regulated by the _____
The sleep-wake cycle is regulated by the suprachiasmatic nucleus, which is a region of the brain responsible for controlling circadian rhythms and therefore playing a significant part in determining sleep patterns and other biological activities.
Explanation:The sleep-wake cycle, which typically follows a 24-hour cycle, is regulated by the suprachiasmatic nucleus (SCN). The SCN is a tiny region of the brain in the hypothalamus, situated directly above the optic chiasm. It is responsible for controlling circadian rhythms, which are the body's internal physiological processes that follow a 24-hour cycle. These rhythms play an important role in determining sleep patterns, feeding patterns, hormone production, cell regeneration, and other biological activities.
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Which of these is a compound?
Question options:
carbon
carbon dioxide
air
oxygen
Answer:
carbon dioxide
Which idea did Linnaeus contribute to the theory of evolution?
All living things inherit acquired characteristics.
Humans tend to reproduce at a faster rate than the food supply.
The goal of organisms is to adapt and to strive for perfection.
Organisms can be classified based on similar traits.
Organisms can be classified based on similar traits.
Explanation;Carolus Linnaeus is considered the Father of Taxonomy because he developed a way to name and organize species that we still use today. Taxonomy is the science that focuses on naming, identifying and classifying or grouping organisms.One of his contributions was the development of a hierarchical system of classification of nature.Linnaeus contributed the idea that D. organisms can be classified based on similar traits.
Linnaeus, a Swedish botanist and taxonomist, made significant contributions to the theory of evolution by introducing the hierarchical system of classification known as taxonomy. He developed a system for naming and organizing living organisms based on their shared characteristics, which laid the foundation for modern biological classification. Linnaeus classified organisms into a hierarchical structure of kingdoms, classes, orders, genera, and species, based on their morphological similarities.
This classification system was instrumental in organizing the diversity of life on Earth and provided a framework for understanding evolutionary relationships among species. By grouping organisms with similar traits into categories, Linnaeus implicitly acknowledged the concept of common ancestry and the idea that organisms share a degree of relatedness due to their evolutionary history. His work paved the way for future researchers, such as Charles Darwin, to build upon the idea of common descent and develop the theory of evolution by natural selection.
Therefore, Linnaeus' contribution to the theory of evolution was his establishment of a systematic method for classifying organisms based on their shared traits, which provided evidence for the interconnectedness of life and the concept of descent with modification.
The correct option is D) Organisms can be classified based on similar traits.
What types of cells do not undergo mitosis
Cells that do not undergo mitosis include mature differentiated cells like neurons and cardiac muscle cells, and reproductive cells or gametes that reproduce via meiosis.
Explanation:The type of cells that do not undergo mitosis include most mature differentiated cells such as neurons and cardiac muscle cells. These cells are considered to be in the permanent phase or G0 phase, where they are metabolically active but do not divide.
Also, cells that reproduce through a different process known as meiosis do not undergo mitosis. These cells include the reproductive cells or gametes (sperm and egg cells) in both animals and plants.
While most cells in the body do undergo mitosis for growth and repair, these specified cells do not.
In biology, not all cells undergo mitosis. Cells that do not undergo mitosis are called permanent or non-dividing cells. Examples of non-dividing cells include nerve cells, muscle cells, and red blood cells. These cells have specific functions and do not typically reproduce or divide.
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During a trip to Galapagos island which Observation led Charles Darwin to suspect that organisms change over time
Galapagos island is the land of unique species of animals and plants. It has 26 types of species of birds and different species of plants that can easily adapt to the environment.
Further Explanation:
The Galapagos Islands is a land of thirteen large islands (archipelago) and a close abouta hundred small islands. Galapagos word has taken from the oldest Spanish word that means tortoise. So that the meaning of word is island of the tortoises. It is a home for unique and different species for example; giant tortoises, sea lions, iguanas and sharks.
On this island, he has observed that there are various types of species of finches. The island has a total 26 types of bird species from which fourteen species are Darwin finches. Darwin observes that Darwin finches are the rapidly evolving vertebrate. The different types of species of finches varied from one land to another. This island also has a unique kind of fauna. They may have evolved from daisies.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Natural selection
Keywords:
Galapagos, island, archipelago, Spanish, tortoise, giant, iguanas, Darwin, finches, vertebrate, mosses, lichens, faunas, climate.
The most common chronic diseases involve the heart and are called cardiovascular diseases. true or false
Academic learning occurs most effectively in a cycle of four steps:
The type of joint that allows flexion, lateral flexion, and rotation of the vertebral column is a ____________.
What does the plasma membrane of a phagocyte attach to on a microorganism? what does the plasma membrane of a phagocyte attach to on a microorganism? pseudopods glycoproteins lysosomes phagosomes?
The plasma membrane of a phagocyte attach to on a microorganism is called the glycoproteins. The glycoproteins’ functions are to identify, adhere to and communicate with the cell, among other functions. This only happens when these glycoproteins are already located in the cell membrane. Sugar molecules are attached to these glycoproteins which are actually proteins. Gathered into short chains which are called the oligosaccharides, these sugar molecules are all found in this area. The glycoproteins are used by the cells which are embedded in the plasma membrane to get the oligosaccharides on the outside of the cell. These glycoproteins normally are attached to the polypeptide side-chains.
If respiratory compromise occurs what action should the nurse take
In a typical epithelial cell na,k-atpase is restricted to:
In a typical epithelial cell, the Na+/K+-ATPase pump is located on the basolateral membrane where it uses ATP to actively transport sodium out and potassium into the cell. This enzyme is essential for maintaining ionic balance and facilitating various cellular functions including ion reabsorption.
In a typical epithelial cell, the Na+/K+-ATPase is restricted to the basolateral membrane. This enzyme, also known as the sodium-potassium pump, functions to maintain the proper concentrations of sodium (Na+) and potassium (K+) ions within the cell. It achieves this by using ATP to actively transport three sodium ions out of the cell and two potassium ions into the cell against their respective concentration gradients.
The Na+/K+-ATPase helps to establish an electrochemical gradient, which is essential for various cellular processes, such as nerve conduction and muscle contraction. Direct active transport through the Na+/K+-ATPase is crucial for maintaining the ionic balance in the cell, with a higher concentration of K+ inside and Na+ outside the cell. This gradient also has a role in facilitating other cellular functions, including the reabsorption of other ions like chloride (Cl-) through symporters.
The polarization of epithelial cells, with specific organelles, and membrane proteins such as Na+/K+-ATPase on the basolateral side, versus other structures like cilia on the apical surface, underlines the specialized functions that these cells carry out, such as secretion and absorption.
The process whereby molecules in vesicles are exported out of the cell is called
A) diffusion
B) endocytosis
C) exocytosis
D) osmosis
The correct answer is option c. Exocytosis.
The exocytosis is a process, by which the cells transport their secretions out of the cells in a membrane bound vesicle. The exocytosis generally transports the water-soluble molecules out of the cell. The products present in the membrane bound vesicle, which is transferred is released outside the body of the cells.
Answer:
The answer is C Exocytosis
Explanation:
A client rescued from a burning building has partial- and full-thickness burns over 40% of the body. which initial physiologic change will the nurse expect?
Why does an action potential only move in one direction?
Action potentials move in one direction due to the refractory period, which inactivates sodium channels in the previous axon segment, preventing backward propagation. This ensures the signal moves from the cell body to the presynaptic terminal continuously. The all-or-nothing nature of action potentials also supports this unidirectional movement.
Action potentials only move in one direction—from the cell body to the presynaptic terminal—due to the refractory period, which prevents them from moving backward down the axon. This period occurs because after an action potential passes through a segment of the axon, the voltage-gated sodium channels in that segment become inactivated and cannot reopen immediately. As the action potential moves from one Node of Ranvier to the next, the downstream segments are depolarized while the upstream segments remain in a refractory state, ensuring that the action potential can only move forward toward axon segments with closed sodium channels ready for rising phase depolarization.This mechanism is supported by the all-or-nothing nature of action potentials, where each depolarization opens the next set of sodium channels, propagating the signal unidirectionally and with full strength down the axon.If renewable energy resources can be replaced, why do we need to conserve them?
Mismanagement will deplete resources. Renewable resources remain longer if used wisely and properly. Conserving resources reduces waste.
What is renewable energy resources?Energy that comes from a source that does not deplete over time is referred to as renewable energy. They are natural, they can regenerate themselves, and their carbon footprint is typically very small or nonexistent. Wind power, solar power, bioenergy (organic matter burned as a fuel), and hydroelectric power, including tidal power, are all examples of renewable energy sources. Tidal power is also a form of hydroelectric power.
If the available resources are managed irresponsibly, then most of them will be depleted. However, the lifespan of renewable resources is significantly extended by careful and effective application of such resources. People are able to reduce their waste and better manage natural resources if they practice conservation.
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True or false: the ability for an animal to use nitrogen in the air depends on the decomposition of animals by nitrogen fixing bacteria
Which of these beakers contains a solution? Explain the answer. In the beaker that has been determined to contain a solution, identify the solute and the solvent.
Answer:
Solution may be defined as the mixture of two or more different substances. The two main different components of the solution are the solute and solvent in the mixture.
Solute may be defined as the substance that dissolved in the solvent. So, the salt and oil is the solute as they are dissolved in the solution. Solvent may be defined as the substance in which the solute is dissolved. So, water is a solvent in which the oil and salt is dissolved to make a solution.
Why would the nurse ensure that a patient's condom catheter is not twisted?
Explain benefits of using wind Mills versus burning fossil fuels
What happens when two species occupy the exact same niche
A. One will cause a primary disturbance
B. They will both increase in population
C. They will help each other
D. Only one will survive
Answer: D. Only one will survive
Explanation:
An ecological niche can be define as the functional role an organism plays in an ecosystem so as to survive. Like, the mode of nutrition, type of habitat chosen for survival and season chosen for breeding are the examples of ecological niche.
If two species occupy the same ecological niche, the species which is more superior over the other will receive all the resources. The species which is inferior will decline and extinct according to the competitive exclusion principle. Hence, only one species will survive.
When a two year old is admitted to a hospital why is it important to encourage the parent to bring a familiar object?
Treatment of irritable bowel syndrome usually includes making dietary changes and _____.