CAMP.BIO:CONC...MOD.MAST+PRINT>I<
10th Edition
ISBN: 9780136858287
Author: Taylor
Publisher: INTER PEAR
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Chapter 13, Problem 5TYK
In an area of erratic rainfall, a biologist found that grass plants with alleles for curled leaves reproduced better in dry years, and plants with alleles for flat leaves reproduced better in wet years. This situation would tend to _____. (Explain your answer.)
a. cause genetic drift in the grass population.
b. preserve
c. lead to stabilizing selection in the grass population.
d. lead to uniformity in the grass population.
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Students have asked these similar questions
A population of gophers is very isolated, so no individuals can move in/out of the population. It is very small, so random events affect allele frequencies and many traits are under strong selection. Males are chosen randomly. Which statement is correct?
A. Allele frequencies in 10 generations will be different than they are today.
B. Individual gophers are evolving traits they need to survive
C.Genetic drift is not acting on the gophers
D. The population is in Hardy-Weinberg equilibrium
You are examining population genetics of aquatic iguanas that live on the Galapagos islands. When you go to visit, you notice that the iguanas can easily swim to close neighboring islands but would have swim very long distances to reach further islands. Which of the following statements is a likely conclusion from your research?
a.
Populations are less similar the closer the islands are to each other.
b.
The further the islands likely have the greatest genetic diversity.
c.
Larger islands always have the lowest heterozygosity.
d.
Smaller populations on very small islands exhibit greater population differentiation.
Hardy Weinberg equilibrium (HWE) describes a situation in which the relative frequencies of alleles do not change over generations.
which of the following could prevent HWE from being maintained?
A. New mutations
B. All individuals reproducing equally
C. Random mating
D. No individuals entering the population
Chapter 13 Solutions
CAMP.BIO:CONC...MOD.MAST+PRINT>I<
Ch. 13 - Summarize the key points of Darwins theory of...Ch. 13 - Complete this concept map describing potential...Ch. 13 - Which of the following did not influence Darwin as...Ch. 13 - Natural selection is sometimes described as...Ch. 13 - In an area of erratic rainfall, a biologist found...Ch. 13 - If an allele is recessive and lethal in...Ch. 13 - In a population with two alleles, B and b, the...Ch. 13 - Within a few weeks of treatment with the drug 3TC,...Ch. 13 - In the late 1700s, machines that could blast...Ch. 13 - Write a paragraph briefly describing the kinds of...
Ch. 13 - In the early 1800s, French naturalist Jean...Ch. 13 - Sickle-cell disease is caused by a recessive...Ch. 13 - It seems logical that natural selection would work...Ch. 13 - SCIENTIFIC THINKING Cetaceans are fully aquatic...Ch. 13 - A population of snails is preyed on by birds that...Ch. 13 - Advocates of scientific creationism and...
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