(a) Stabilizing selection Robins typically lay four eggs, an example of stabilizing selection. Larger clutches may result in malnourished chicks, while smaller clutches may result in no viable offspring. Population after natural selection Original population (b) Directional selection Light-colored peppered moths are better camouflaged against a Population after natural selection pristine environment; likewise, dark-colored peppered moths are better camouflaged against a sooty environment. Thus, as the Industrial Revolution progressed in nineteenth-century England, the color of the moth population shifted from light to dark, an example of directional selection. Original - population (c) Diversifying selection In a hyphothetical population, gray and Himalayan (gray and white) rabbits are better able to blend with a rocky environment than white rabbits, resulting in diversifying selection. Original population Population after natural selection From Lumen learning

Q: Human communities around the world that are isolated geographically or culturally serve as an…

A: The study of human communities that are isolated geographically and culturally provides utility to…

Q: Darwin’s insights into the role of selection in evolution began with close observations of the…

A: A)   27 = 128 different phenotypes would be expected in the F2 generation. B) Expected rarest…

Q: Why does it take longer to eliminate a recessive allele than a dominant allele?

A: Genes are the hereditary unit of an organism that gets transferred from the parent to the offspring.…

Q: You find a population of 200 mice in which 32 of them display the recessive fur color. What is the…

A: According to the Hardy-Weinberg Law, p is the frequency of the dominant allele and q is the…

Q: Question 6 Listen In fruit flies, yellow body is a sex linked recessive allele. The dominant allele…

A: The question is asking us to determine the percentage of male offspring that will have a yellow body…

Q: In your own words, explain the following concepts and provide at least one example for each:…

A: Polymorphism in biology refers to the occurrence of two or more clearly different morphs or forms,…

Q: Using an example scenario, please explain the three conditions required for a trait to be under the…

A: The process in which a population of living organisms change and adapt themselves as per the current…

Q: Looking to the future, what changes to the frequency of the sickle-cell allele do you envision as…

A: Introduction:- Sickle-cell disorder is an autosomal recessive disorder that's mean If both the…

Q: Describe two problems associated with the Grandmother hypothesis that argue against its validity

A: The grandmother hypothesis is a hypothesis to explain the existence of menopause in human life…

Q: Suppose 40 percent of people living in a remote, isolated mountain village can taste…

A: According to Hardy Weinberg equation in the absence of external forces the allele and genotype…

Q: What happens to a recessive trait in the F2 generation in Mendelian genetics

A: ANSWER : CROSS = It is the cross made between one traits of an same individual from parents forming…

Q: Organisms heterozygous for a recessive trait are often called carriers of that trait. What does that…

A: Carriers of a trait are always heterozygous, and the trait is always recessive.

Q: Green dragons are known by Knights of the Realm to be cleverer and thus more dangerous than both red…

A: dN/dS ratio tells us about the evolutionary pressure of selection on a gene coding for a protein and…

Q: at accounts for 100% of a population not being polymorphic? For instance, an entire South American…

A: Genetic polymorphism is a phenomena in which multiple genetic forms are observed in nature. Multiple…

Q: Selective breeding of a wild plant produced three different vegetable plants; broccoli cabbage, and…

A: Answer is b.They have same same alleles but express different proteins.

Q: OHO does phenylketonuria affect brain developm How does cancer spread from one tissue to anoi How…

A: Population genetic science is that the study of genetic variation among populations, and involves…

Q: NASA is planning on sending a colony of Snow Monkeys to mars to determine how evolution will…

A: The Hardy–Weinberg law depicts the connection among allele and genotype frequencies when a populace…

Q: Why is inbreeding not advisable?

A: Inbreeding is the process of mating closely related individuals like brother and sister, father and…

Q: Is Central Dogma  universal phenomenon? and Does Central Dogma always apply?

A: Introduction: The process by which the directions in DNA are turned into a functioning product is…

Q: Why amorphic alleles are usually recessive to wild-type alleles?

A: Step 1 Mutation can result in mutant alleles that no longer produce a similar type of active product…

Q: Identify two (2) differences between a genetic cross in humans and Mendel's experiments in peas

A: A difference between a genetic cross in humans and Mendel's experiments in peas is s as follows :…

Q: What is the purpose of writing down and testing the null hypothesis? Do it

A: HypothesisOnce the research problem is ready to carry out further research study, a literature…

Q: Consider selection acting against dominant alleles compared to selection acting against recessive…

A: Selection is the process by which changes occur in the frequency of alleles.  There are two types of…

Q: How does the modern/classical approach to heredity differ from Aristotle's idea on heredity?

A: Heredity or inheritance is the transfer of characters from one generation to another generation by…

Q: What is the "grandmother hypothesis"?

A: The aging process varies greatly across organisms. Numerous evolutionary theories may be used to the…

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…

Pre-Darwinian Concepts