University:
University of Utah
Course:
Biol 1620 | Fund. of Biology II
Academic year:

2023
Views:

425

Pages:

2
Author:

Tatum Bernard

Quiz 1 Which of the following statements would Darwin have disagreed with? Select all that apply. Which of the following statements describe one of Darwin’s postulates for evolution by natural selection? Select all that apply. Descent with modification occurs through inheritance of acquired; There are higher and lower organisms.characteristics. More individuals are produced than an environment can support; Some individuals will have a higher fitness; Traits must be heritable; Allelic variation must be present in the population Thirty people are selected for a long-term Founder effect mission to colonize a planet many lightyears away from Earth. The mission is successful, and the population rapidly grows to several hundred individuals. However, certain genetic diseases are unusually common in this group, and the group's gene pool is quite different from that of the Earth population they have left behind. Which of the following phenomena has left its mark on this population? An individual can acclimate, but only populations can adapt. TRUE Whether or not an organism survives and ultimately reproduces is almost entirely a matter of random chance. Natural selection always increases fitness of a population by maintaining genetic variation. Natural selection starts with the creation of new alleles that are directed toward improving an organism's fitness. Natural selection and evolutionary change can occur in a short period of time (a few generations). Natural selection depends on the local environment at the current time. Only the smallest male fish can pose as females and be successful at the sneaker strategies and only the largest male fish are successful at defending a territory. FALSE FALSE FALSE TRUE TRUE disruptive selection is occurring, graph looks like boobs, x axis labeled size of male fish, yaxis labeled number of individuals, genetic variance is increasing in this scenario Mutations This evolutionary process always increases genetic variation by producing new alleles, however, it is typically neutral or reduces fitness. This evolutionary process always reduces genetic differences between populations, which can increase or decrease the fitness of the populations. Gene Flow This evolutionary process is driven by Natural Selection differential reproductive success. This evolutionary process is the random Genetic Drift change of allele frequencies over time.

Biology Cheat Sheet - Quiz 1 Practice Problems

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