HELP ASAP. A student uses a marble simulation to illustrate genetic drift. She starts with a population of 40 individuals, represented by 20 red marbles and 20 yellow marbles. What do these marbles represent in this simulation?
Answers
Answer:
The correct answer would be - marbles represent alleles for a particular trait that has an allelic frequency of 0.5 in this simulation.
Explanation:
In this given representation or simulation to illustrate genetic drift, a student used marbles of different colors. She used 20 red and 20 yellow marbles in a population of 40 individuals. In this simulation, she used each marble color red and yellow to represent the allele for a particular trait.
That means red marbles represent alleles that are specific to a trait of a gene and similarly yellow marble represents another trait of the same gene. It is also represented that both alleles are present in the same number which means they have alllelic frequency of 0.5.
Answer:
a population’s gene pool
Related Questions
A scientist conducted an investigation about the effects of diet on disease resistance in mice and made surprising observations. The mice with a genetic ear mutation seemed to show similar patterns of resistance compared to mice with normal ears. Based on this information, what will the scientist most likely do next?
She will perform a second investigation on the role of certain genes in disease resistance.
She will revise her hypothesis to pertain to mutations rather than diet, and update her data accordingly.
She will use this information to determine that her original question was nonscientific, so she will revise it.
She will determine that her hypothesis was not supported because resistance must be genetic.
Answers
Based on the information provided, the scientist will most likely revise her hypothesis to pertain to mutations rather than diet, and update her data accordingly.
The surprising observation that mice with a genetic ear mutation showed similar patterns of resistance compared to mice with normal ears suggests that the genetic mutation may be playing a significant role in disease resistance.
This new information challenges the initial hypothesis focused on diet and indicates the need to shift the research focus towards investigating the role of certain genes, including the ear mutation, in disease resistance.
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Answer: sorry if i'm too late but the answer you're looking for is A or she will perform a second investigation on the role of certain genes in disease resistance.
Explanation: just got a 100% on the quiz.
How are seismic waves useful for studying the struc-
ture of Earth's interior?
Choose the TWO correct answers.
A They help scientists predict when and where earth-
quakes will happen.
B They help scientists determine the composition of
Earth's interior.
C They help scientists understand the various layers of
Earth's interior and their thickness.
Answers
Answer:
Explanation:
I believe it's B and C, but I don't know where these questions are coming from, therefore I might be wrong. This is just based off my knowledge. Good luck!
describe the appearance of the dna. what did it look like when spooled onto the rod? what did it look like under the microscope (optional)
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It has been said that deoxyribonucleic acid isolated from cells resembles strands of mucus, limp, thin, white noodles, or a network of fragile, limp fibers.
1. The well-known DNA double-helix molecule can be observed under a microscope.
2. As the DNA is collected on the spooling rod, a viscous, clotted mass will be visible.
3. The size of the DNA fragments, which are significantly larger than the small biomolecules like amino acids and small carbohydrate sugars, has an impact on the amount of DNA that gets spooled.
4. While salt and alcohol make DNA insoluble, it is soluble in water.
5. A precipitate can be spooled out after the alcohol layer has been gently stirred with a sterile pipette.
Due to the presence of polar chemical groups on the exposed ends, x DNA spools onto the stick or glass rod. The ends of the DNA are drawn to the stirrer because glass and wood are both polar materials.
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You were looking at a cell under a microscope. It had a large central vacuole, a nucleus, a cell wall and mitochondria. You concluded that it is a:
Responses
Eukaryotic animal cell
Eukaryotic animal cell
Hybrid of a plant and animal cell
Hybrid of a plant and animal cell
Eukaryotic plant cell
Eukaryotic plant cell
Prokaryotic bacterial cell
Answers
On the presence of a large central vacuole, a nucleus, a cell wall, and mitochondria, the cell you were looking at is most likely a eukaryotic plant cell. Option C is correct.
Eukaryotic cells are more complex and larger than prokaryotic cells, which lack a nucleus and most organelles. Eukaryotic cells are found in animals, plants, fungi, and protists.
However, Eukaryotic cells have a nucleus, membrane-bound organelles such as mitochondria, and a cytoskeleton. Plant cells, in addition to these organelles, also have a cell wall, a large central vacuole, and chloroplasts for photosynthesis. The presence of a large central vacuole, a cell wall, and mitochondria in the cell you observed suggest that it is a plant cell.
Hence, C. is the correct option.
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--The given question is incomplete, the complete question is
"You were looking at a cell under a microscope. It had a large central vacuole, a nucleus, a cell wall and mitochondria. You concluded that it is a: Responses A) Eukaryotic animal cell B) Hybrid of a plant and animal cell C) Eukaryotic plant cell D) Prokaryotic bacterial cell."--
suppose that the initial frequencies of a deleterious allele are equal in both a small population and a large population. why is it easier for a recessive deleterious allele to be eliminated from a small population than from a large one? only a few copies of a recessive allele are present in a small population, and they are more likely to be lost through genetic drift than the many copies found in a larger population. small populations are more susceptible to diseases than large populations, making it more likely that a disease will kill individuals that carry a particular allele. reproductive rates are lower in small populations than in large populations due to difficulties in finding a mate. recessive alleles are more likely to be lost when reproduction is slow. large populations have had greater success in their ecological niche and are thus more fit than small populations, so individuals with deleterious alleles in large populations are better able to withstand the negative effects of the allele.
Answers
The fate of a deleterious allele depends on a complex interplay of factors, including population size, genetic drift, disease susceptibility, and reproductive rates.
When considering the fate of deleterious alleles in populations, it is important to consider the size of the population in question. If we assume that the initial frequencies of a recessive deleterious allele are equal in both a small and a large population, it is easier for the allele to be eliminated from the small population. This is due to several factors, including genetic drift, susceptibility to disease, and reproductive rates.
In small populations, only a few copies of the deleterious allele are present, making it more likely that they will be lost through genetic drift. Genetic drift occurs when chance events cause the frequency of an allele to change over time, and it is more pronounced in small populations. Additionally, small populations are more susceptible to diseases, making it more likely that individuals carrying the deleterious allele will be killed by a disease. Finally, reproductive rates are lower in small populations, which can make it more difficult for individuals carrying the deleterious allele to find a mate and reproduce.
In contrast, large populations have had greater success in their ecological niche and are generally more fit than small populations. This means that individuals carrying the deleterious allele in a large population may be better able to withstand the negative effects of the allele. However, if the frequency of the allele becomes too high, it may still be subject to selection against it. In summary, the fate of a deleterious allele depends on a complex interplay of factors, including population size, genetic drift, disease susceptibility, and reproductive rates.
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5. What are virus hoaxes? Why are the hoaxes sometimes more dangerous than an actual virus?
Answers
Answer:
An actual computer virus is a malicious software, often known as malware, that can harm a computer and its users.
Virus hoaxes are false or misleading information about viruses that circulate through various communication channels.
They can be more dangerous than actual viruses due to their ability to spread quickly, cause panic, and undermine effective public health measures.
Virus hoaxes are deceptive messages or claims that often exaggerate the severity or impact of a particular virus. They can be spread through social media, email chains, or word of mouth. These hoaxes may include misinformation about symptoms, transmission methods, or false remedies, leading people to take ineffective or even harmful actions.
What makes virus hoaxes particularly dangerous is their potential to create panic and misinformation at a rapid pace. The viral nature of social media and other communication platforms allows these hoaxes to reach a wide audience within a short period. As a result, people may make decisions based on false information, such as avoiding necessary medical treatment, taking unnecessary precautions, or spreading fear and misinformation to others.
Moreover, virus hoaxes can undermine public health efforts by diverting attention and resources from legitimate preventive measures. They can erode trust in healthcare authorities and disrupt the dissemination of accurate information, making it harder for individuals to make informed decisions and follow recommended guidelines.
This can have severe consequences, especially during outbreaks or pandemics, where timely and accurate information is crucial for public safety. Therefore, it is essential to verify the credibility of information and rely on trusted sources to mitigate the risks associated with virus hoaxes.
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How does weathering shape earths surface
Answers
Answer: Weathering constantly changes the earth's surface by wearing away exposed surfaces, smoothing rough areas of rocks and causing rock materials to break down in time. Weathering creates soil and happens due to ice, wind, water, salt, acids and changes in temperature Gravity shapes the Earth's surface by moving weathered material from a higher place to a lower one.
What factors are involved in the flow of lymphatic fluid.
Answers
Answer:
Explanation:
Fluid moves from the interstitial space into the lymph capillaries by means of a pressure mechanism exerted by respiration, peristalsis of the large intestine, the compression of muscles, and the pull of the skin and fascia during movement.
2 What time of year would you visit the beaches of Argentina?
Answers
Answer:
To visit Argentina's beaches, remember that the seasons are reversed in the southern hemisphere; summer is from December to February, while winter is July through September. The best time of year to visit depends on where you go, what you want to do and whether you want to avoid the crowds
Hi! Please help. Is it living or nonliving?
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What are some examples of evidence that suggest that some continents were once joined and have since separated?
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Energy requiring metabolic pathways that yield complex molecules from simpler precursors are: A) amphibolic. B) anabolic. C) autotrophic. D) catabolic. E) heterotrophic
Answers
Energy requiring metabolic pathways that yield complex molecules from simpler precursors are: anabolic. The correct option is (B).
Anabolic pathways are those metabolic pathways in which simple molecules are combined to form more complex molecules. These pathways require energy, usually in the form of ATP, to drive the chemical reactions that synthesize complex molecules from simpler precursors.
Anabolic pathways play an important role in building the macromolecules needed for cellular structures and functions, such as proteins, nucleic acids, and complex carbohydrates. These pathways are also involved in the storage of energy in the form of glycogen, lipids, and other complex molecules.
Examples of anabolic pathways include protein synthesis, DNA replication, and glycogen synthesis. These pathways are often linked to catabolic pathways, which break down complex molecules into simpler ones and release energy.
Together, anabolic and catabolic pathways maintain the balance of chemical reactions in the cell, allowing it to grow, divide, and carry out its functions.
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Define the word atom.
Answers
Answer:
a particle of matter that uniquely defines achemical element
Explanation:
atoms make up everything you can see and even stuff you can't see
Answer:
Basic unit of a chemical element.
Explanation:
If defined as the smallest unit of matter, this is incorrect, as that would be electrom, protn, nuetron, that stuff, and even smaller is quarks that make up the prior three things. So DONT define as smallest unit.
Fatty acids that are broken down for energy production are utilized for which aspects of cellular respiration? choose all that apply.
Answers
The correct answer is B. The process of cellular respiration uses fatty acids broken down for energy production is glycolysis.
A cytoplasmic mechanism called glycolysis converts glucose into two molecules with three carbons each and releases energy. Hexokinase, a phosphorylating enzyme, assists in the phosphorylation process that traps glucose. This reaction uses adenosine triphosphate (ATP), and the end result, glucose-6-P, inhibits hexokinase.
Since, many organism use aerobic as well anaerobic respiration pathway thus glycolysis is suitable for both for cellular respiration.
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The complete question is :
Fatty acids that are broken down for energy production are utilized for which aspects of cellular respiration? Choose all that apply.
Fermentation
Glycolysis
Pyruvate oxidation
Citric acid cycle
Electron transport chain
a group of inherited disorders marked by increased bleeding times is known as:_____
Answers
1. Bakit kailangan isagawa ang air layering o marcotting?
Answers
Answer:
Ginagawa ang marcotting upang maparami ang halaman. Ginagamit dito ay ang sanga ng isang halaman. Binabalatan ito at ibinabalot sa lupa o balat ng niyog saka babalutan ng plastic na supot hanggang sa tumubo ang mga ugat nito, pagkatapos tumubo ang mga ugat nito ay saka puputulin ang sanga at ito ang itatanim sa lupa upang magkaroon ng panibagong halaman. Madalas ginagamit ito sa mga puno na matagal tumubo.
Explanation:
Compare and contrast James’s public school experience with his mother’s public school experience. Identify at least two similarities and two differences in their experiences.
Answers
I inferred you are referring to the Characters of the book "The Color of Water".
Explanation:
James and his mother Ruth both attended public schools, however, his mum experienced a racially divided public school environment.
However, because they were Jews, his mum chose a public school attended predominantly by Jewish students. In a sense, he experienced lesser discrimination since he was surrounded by those like him.
State that some medicinal drugs work by inhibiting the activity of enzymes
Answers
Many medicinal drugs work by inhibiting the activity of enzymes, which are proteins that catalyze biochemical reactions in the body.
Biochemical reactions are the chemical reactions that occur within living organisms to maintain life. These reactions involve the conversion of one molecule to another through a series of complex steps. Biochemical reactions are essential for a range of cellular functions, including metabolism, growth, repair, and reproduction.
Enzymes are protein molecules that act as catalysts to accelerate these reactions. They lower the activation energy required for a reaction to occur, allowing it to happen more quickly and efficiently. Enzymes are highly specific, with each enzyme catalyzing a particular biochemical reaction. There are many different types of biochemical reactions, including oxidation-reduction reactions, synthesis reactions, and hydrolysis reactions.
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Arrange the three kinds of nitrogenous wastes based on the energy required to synthesize them, beginning with the waste product that requires the least energy input.
1. ammonia
2. urea
3. uric acid
Answers
the three kinds of nitrogenous wastes based on the energy required to synthesize them are arranged; Ammonia < urea < uric acid.
Nitrogenous wastes are the nitrogen compounds that organisms use to get rid of excess nitrogen. Ammonia, urea, and uric acid are the most common nitrogenous wastes that animals excrete. Protein metabolism generates all of these nitrogenous wastes.
Ammonia is the most toxic of these nitrogenous wastes, and it is the most common but requires the least energy. Urea is more harmful than uric acid, but it is less harmful than ammonia, reducing the amount of energy required to synthesize it. Uric acid is the least harmful, a non-poisonous particle with four nitrogen molecules. This is useful for birds and reptiles that lay hard eggs because it eliminates the most nitrogen, uses the least amount of water, and is not toxic. It also takes the most energy input.
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Which of the following explains Gregor Mendel’s contribution to the study of genetics?
A. He laid the groundwork that formed the basis of the theory of heredity.
B. He confirmed the current theory that offspring were a blend of the traits of their parents.
C. He was able to determine that patterns of heredity could not be predicted.
D. He invented the Punnett square to predict patterns of heredity.
Answers
A. He laid the groundwork that formed the basis of the theory of heredity.
What type of scientist would be the best qualified to perform genetic engineering to pro- duce seed that are more productive in agriculture? A. biochemist B. geologist C. molecular biologist D. paleontologist
Answers
The type of scientist best qualified to perform genetic engineering to produce more productive seeds in agriculture would be a molecular biologist, the correct option is C.
Molecular biologists specialize in studying the structure, function, and interactions of molecules within biological systems, including DNA and genes. Genetic engineering involves manipulating the genetic material of organisms, which requires a deep understanding of molecular biology principles.
Molecular biologists have the expertise to identify and isolate specific genes responsible for desired traits in crop plants, such as increased productivity or resistance to pests or diseases. They can then modify or introduce these genes into target plants to achieve the desired outcomes, the correct option is C.
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helpppppp pleaseeeeeeee
Answers
If a checkpoint fails or if a cell suffers physical damage to chromosomes during cell division, or if it suffers a debilitating somatic mutation in a prior S phase, it may selfdestruct in response to a consequent biochemical anomaly.
Hope this helps!! :)
why we should put gloves while using biological powders?
Answers
Answer:
Because it could hurt our hands
Explanation:
Which of the following statements is TRUE?A. Transcription and translation are continuous processes in eukaryotes but not prokaryotesB. Transcription and translation are continuous processes in prokaryotes but not eukaryotesC. All of the processes occur in the same site in the cell for prokaryotes and eukaryotesD. mRNA is processed before translation in prokaryotes but not eukaryotesE. Transcription and translation are continuous processes in both eukaryotes and prokaryotes
Answers
Transcription and translation are processes that happens in both prokaryotes and eukaryotes, but in eukaryotic cells they take place in different sites than in prokaryotic cells. Therefore, C is incorrect.
In eukaryotic cells, the mRNA is extensively processed before it is ready to be translated, not in prokaryotic cells. Therefore, D is incorrect as well.
In eukaryotic cells, transcription and translation are separate processes, transcription takes place in the nucleus and translation takes place in the cytoplasm. In prokaryotic cells, transcription and translation both takes place in the cytoplasm, being a continuous process. Therefore, A is incorrect, E is wrong too and the correct answer is B. Transcription and translation are continuous processes in prokaryotes but not eukaryotes.
Hi! Could someone help me out with this? Please and thank you!
Answers
Answer: material 3: 24/100 = 0.24 g/ml
Explanation:
cork floats in water, therefore its density should be lower than 1g/ml
density = mass/volume
material 1: 89/10 = 8.9 g/ml
material 2: 26/10 = 2.6g/ml
material 3: 24/100 = 0.24 g/ml
material 4: 160/100= 1.6 g/ml
The process in which a gas turns back into a liquid is called __________. What word completes the sentencA helium balloon's temperature is raised by 1°C. Will this cause its molecules to move faster or slower?e?
Answers
Answer:
the process is called condensation.
the molecules will move faster
Why do you think Dr. Margulis met so much resistance with her introduction of endosymbiosis?
Answers
Answer:
Because there is scientific evidence that evolution occurs gradually and endocimbiosis is a type of evolution that occurs suddenly.
Explanation:
Although Dr. Margulis was very thorough in her defense of endosymbiosis, she had to face great resistance from the scientific community around this theory. This was because as we know, and as it is scientifically proven, evolution is something that happens gradually and slowly and that is exactly what scientists believed and defended. However, endosymbiosis presented a kind of evolution that happened abruptly and suddenly, which provoked resistance to the theory.
Question 1 Which of these is an example of a liquid-solid solution?
Answers
which of what? is there an attachment
A species of moth has a 2 varieties of wing color: brown and white. As winter approaches, the trees where the moths live loose their leaves. The moth's predators are birds who hunt for the moths as they rest on the dark tree bark. Every moth lays 100 eggs, but only about 10 from each egg cluster live to adulthood. What are the variations in this population?
Answers
Answer:
In this case, the population of moths you're referring to has a number of variations. Here they are:
1. Wing Color Variation: The moths have two phenotypic variations for wing color, brown and white. This is a clear physical trait that can change based on the genetic makeup of the moth.
2. Survival Variation: Out of every 100 eggs laid, only about 10 moths survive to adulthood. This could imply a variation in the fitness or adaptability of the offspring, where only the most fit or adaptable (in terms of avoiding predators, finding food, or handling environmental conditions, for example) survive.
3. Seasonal Environment Variation: The environment where the moths live changes with the seasons. In winter, the trees lose their leaves, which may affect the camouflage ability of the moths depending on their wing color. This is a temporal variation in the environment, which can potentially influence the survival rates of the different moth variations.
4. Predation Variation: The predators of the moths are birds, which hunt for the moths as they rest on the dark tree bark. The level of predation can vary based on factors like the bird population size, hunting efficiency, and the visibility of the moths.
Each of these variations plays a role in the survival and reproduction of the moths and could lead to evolutionary changes in the population over time, especially if certain traits (like wing color) increase the moths' survival and reproductive success.
answer all three for brainly!
Answers
Answer:
A
C
D
NOT SURE IF CORRECT
SORRY
Explanation: