Concept explainers
To analyze:
What is expected to happen to a trait that increases an individual’s reproductive success relative to that of other individuals?
Introduction:
Evolution is a process by which an organism gets better adapted to the changed environment as the nature supports survival of the fittest. Hence it is always a race among the organisms that are able to increase their reproductive capacity.
Explanation of Solution
If a trait is intended to increase the reproductive success of an individual, the allelic frequency of that trait will increase while diminishing the frequency of other individual as evolution is the change in allelic frequency in order to support the survival of the fittest.
Hence, it may be concluded that, if a trait increases the reproductive success of an individual, the allelic frequency of that trait increases.
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Chapter 9 Solutions
What is Life? A Guide to Biology
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- The following statements describe events in the life cycle of a rabbit. Which of these events describes a trait of the rabbit that is most likely passed on to future generations? O A young rabbit develops a bacterial infection and lives long enough to produce three litters. O A young rabbit constantly outruns predators and lives long enough to produce three litters. O A young rabbit survives freezing winter temperatures and digs a burrow in the spring. O A young rabbit migrates to find a better food supply and establishes a new territory.arrow_forwardPlease read the scenario below and answer the question (in bold) that follows: In humans, the ability to roll one's tongue is a dominant trait (T). A woman who can roll her tongue is married to a man who cannot roll his tongue. The couple's daughter, Nia, can roll her tongue though their son, Michael, cannot. If Nia were to (one day) marry a man who was heterozygous for the tongue-rolling trait, what percentage of their children would be able to roll their tongues? a. 0% b. 25% c. 50% d. 75% e. 100% Marrow_forwardChoose a trait from the list above and describe if you are dominant or recessive for that trait. Do the same for your parents, alternatively, if you have children you can do this with your and your partner's traits and your child(ren), or you can choose a set of parents and children that you know as examples for this exercise. In your response be sure to list how both parents and their child(ren) are expressing the trait, what the potential GENOTYPES are for each individual. What are the possibilities for the parental pair based on their possible genotypes (hint: Punnet Square).arrow_forward
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