You are studying two populations of rats—one in New York and the other in Florida. Adult New York rats seem to prefer Swiss cheese, whereas Florida rats seem to prefer cheddar. Design an experiment to determine the extent to which this behavior may be genetically controlled versus environmentally influenced.

Q: BS Haldane (allegedly) once said, “I would lay down my life for two brothers or eight cousins.”…

A: The probability of both life and death is complex and depends on various factors like health, the…

Q: Choose your favorite animal or plant adaptation and describe an experiment that you would do to test…

A: An adaptation is any heritable trait that helps an organism, such as a plant or animal, survive and…

Q: Describe, in as much experimental detail as possible, how you would test the hypothesis that the…

A: Predation is the interaction between the organism where a predator kills and eats the prey. This…

Q: you (should have) learned that selection alone cannot purge a population of the very last copy of a…

A: The mechanisms that can get rid of the last deleterious allele are random mating and mutation.

Q: The allele "a" occurs with a frequency of 0.17 in a population of clams at Hardy- Weinberg…

A: Hardy Weinberg Equilibrium states the genetic equilibrium of the population. It is achieved when…

Q: Applying Hamilton’s Rule, will natural selection favor helping a half sibling if the  incremental…

A: According to Hamilton's rule, kin selection causes genes to increase in the frequency when the…

Q: A cat breeder wishes to develop a breed that does not growl. She starts with a diverse mixture of…

A: Introduction  Breeding refers to the process of selecting individuals to produce offspring with…

Q: Using the concept of inclusive fitness (and kin selection), explain how altruistic behavior (e.g.…

A: The altruism behavior of an animal is that behavior when it benefits the other animals at the cost…

Q: Albinism is rare in most human populations, occurring at a frequency of about 1 in 20,000 people.…

A: An allele is a variant form of a gene that exists at a specific location on a chromosome. Genes are…

Q: You set up two populations of fruit flies (Drosophila) in the lab in large enclosures. One…

A: In fruit flies (Drosophilia melanogaster) larvae, two foraging stratrgies are seen. These are sitter…

Q: In a Gwas study, why is it important to a.) Recruit thousands of people and b. Categorize…

A: Introduction: Systems biology is an approach to understanding complex biological systems. It needs…

Q: What is meant by the term ‘fitness’ in the sense it is used in Evolutionary theory?

A: Biogeography refers to the study of distribution of the species and ecosystem in geographical space…

Q: From the diagram: 1. Is A responding variable? 2. Is B manipulated variable? 3. Is C controlled…

A: In experiments, scientists controls the variables present in the experiment as without controlling…

Q: You have collected data on the observed genotype frequencies of the next generation. They are: 60%…

A: In order to check whether the population is evolving or not it should follow the Hardy Weinberg's…

Q: ou sample 1000 lizards in a very large population. Every individual you have sampled is brown. You…

A: This is false statement . This is an example of inductive reasoning.

Q: Goswami disagrees with the Darwinian concept of canalized behavior. What are his main criticisms of…

A: The Darwinian concept of canalized behavior refers to the idea that certain behaviors are innate and…

Q: 1) Baby head size is an example of 2) Giraffe neck length is an example of 3) Rabbit Size is an…

A: Selection, in the context of evolutionary biology, refers to the process by which certain traits or…

Q: Discuss the case of sickle-cell disease as an example of stabilizing selection.

A: Sickle cell disease or sickle cell anaemia is a heritable disease that affects the haemoglobin…

Q: How would you expect a population to evolve differently in a complex, "patchy" (small, isolated and…

A: This is the answer to the first part of the question only. For the second part you have to post the…

Q: Suppose you are a researcher studying a population of beach mice living in the coastal dunes of…

A: 1. After several experiments, you are able to determine that mice with extremely light or very dark…

Q: You are studying a genetically modified mouse that produces electric blue fur, which is not a fur…

A: DNA is the genetic material present in all living organisms (except some viruses, but viruses are…

Q: You were given two examples of learning in class.  One related to wasps using landmarks to find…

A: *Here Given that one is related to wasps using landmarks to find nesting sites.  *The other one is…

Q: There are three alleles at a gene determining eye color in a population of wild cats, the B allele…

A: Allele  Allele is a variant form of a gene present on chromosome.

Q: You decide to examine call duration in Canadian toads at Big Lake near Edmonton. Call duration in…

A: Hardy Weinberg equilibrium is found in a population with large population size, no migration, no…

Q: You are examining population genetics of aquatic iguanas that live on the Galapagos islands. When…

A: Given that iguanas can easily swim to close neighboring islands but would have swim very long…

Q: New traits appear in most or all individuals in a population at the same time."   Please explain…

A: Trait emergence refers to the development or appearance of new characteristics or features in…

Q: You observe that every time your neighbor, who always wears a yellow hat, walks out his front door,…

A: An experimental setup contains several components: Hypothesis: a guess of the explanation of a…

Q: The ability to taste a chemical, phenylthiocarbamide (PTC) is due to the dominant allele ‘T’. Those…

A: The question is related to Hardy Weinberg Equilibrium. p is the dominant allele. q is the recessive…

Q: Explain how negative frequency-dependent selection works.

A: The frequency-dependent selection is a part of the evolutionary process through which the fitness of…

Q: In New Zealand you begin to study the relationship between snails and their trematode parasites.…

A: Introduction :- Host and parasite relationship is of different types . It can be of obligatory , in…

Q: Procedure 9.1, we will model natural selection in a prey population. Our prey population is beans.…

A: Example explain the type of natural selection which are of three types directional selection,…

Q: (a) Relative fitness 1.50 1.25- 1.00- 0.75- BO NO 0.50- 31 32 generations generations, Net fitness…

A: i. males competed intensely for females, which resulted in selection for traits like 'high…

Q: Assume you are studying a population of fire toads and want to predict what happens after a…

A: Given:      Before freeze event of toad average body size = 50gms      After freeze event of…

Q: Explain frequency-dependent selection in your own words.

A: The process by which the heritable traits of biological population is changed over a successive…

Q: Consider the data that are summarised in the figure i. The data in part (a) are consistent with the…

A: As we can see in figure (a), in both males and females, alarm calling evolved in according to kin…

Q: Explain how natural selection might be responsible for the PTC taster polymorphism.Why might some…

A: PTC or phenylthiocarbamide in human populations is the compound that is responsible for tasting…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.