Module 7 Lecture Quiz_ Speciation and Non-Adaptive Evolution_ BSC2005_ Biological Sciences, Spring 2

This preview shows page 1 out of 9 pages.

Unformatted text preview: 4/7/2017 Module 7 Lecture Quiz: Speciation and Non­Adaptive Evolution: BSC2005: Biological Sciences, Spring 2017 Module 7 Lecture Quiz: Specia핗�on and Non‐Adap핗�ve Evolu핗�on Due Feb 17 at 11:59pm Time Limit 40 Minutes Points 25 Questions 25 Available Feb 4 at 2am ­ Feb 24 at 11:59pm 21 days Instruc핗�ons You will have 40 minutes to complete this quiz. You may use your worksheets and notes form this Module's lectures, readings and activities. This quiz was locked Feb 24 at 11:59pm. A empt History LATEST Attempt Time Score Attempt 1 30 minutes 22 out of 25 Score for this quiz: 22 out of 25 Submitted Feb 17 at 10:36pm This attempt took 30 minutes. Question 1 0 / 1 pts Hardy­Weinberg is representative of how allele frequencies might behave in the "real" world. You Answered True Correct Answer False Question 2 1 / 1 pts If p = .9, what is the frequency of the heterozygote? .81+(2)(.9)(.1) + (.01) .10 .81 + .18 Correct! .18 1/9 4/7/2017 Module 7 Lecture Quiz: Speciation and Non­Adaptive Evolution: BSC2005: Biological Sciences, Spring 2017 Question 3 1 / 1 pts Darwin's finches are an example of which of the following? allopatric speciation pre­zygotic isolation founder effects adaptation Correct! all of the above Question 4 1 / 1 pts If q = .4, what is the frequency of homozygous recessive individuals? .4 Correct! .16 2(.4)(.4) .6 Question 5 1 / 1 pts A small population might still exhibit high genetic diversity if which of the following applies? Correct! gene flow lots of offspring strong natural selection 2/9 4/7/2017 Module 7 Lecture Quiz: Speciation and Non­Adaptive Evolution: BSC2005: Biological Sciences, Spring 2017 none of these will help Question 6 1 / 1 pts Which of the following is NOT a random process? mutation genetic drift Correct! natural selection all of these are random Question 7 1 / 1 pts Which of the following is NOT an example of pre­zygotic isolation? a mockingbird sings his courtship song to a bluebird, and she flies away The zoo puts a male gorilla and a female chimpanzee in the same cage, but they ignore each other A hibiscus releases its pollen but the pollen cannot fertilize the ragweed ovary structures. Correct! the offspring of a donkey and a horse is infertile Question 8 1 / 1 pts Genetic drift only happens in small populations. True Correct! False 3/9 4/7/2017 Module 7 Lecture Quiz: Speciation and Non­Adaptive Evolution: BSC2005: Biological Sciences, Spring 2017 Question 9 1 / 1 pts When a population is unable to interbreed with other members of its (former) group, it is said to be ____________________. At this point, it is considered a ___________________. suffering from inbreeding depression; population suffering from inbreeding depression; new species reproductively isolated; population Correct! reproductively isolated; new species Question 10 1 / 1 pts Speciation ALWAYS requires a physical barrier. True Correct! False Question 11 0 / 1 pts What is inbreeding depression? Correct Answer too many recessive deleterious alleles appear in the population a population goes extinct because it is just too small the population stops breeding and goes extinct You Answered none of the above 4/9 4/7/2017 Module 7 Lecture Quiz: Speciation and Non­Adaptive Evolution: BSC2005: Biological Sciences, Spring 2017 Question 12 1 / 1 pts Which of the following might lead to reproductive isolation? breeding at different times or seasons living on two sides of a mountain range living on two sides of a river not recognizing the courtship dance of the opposite sex Correct! all of the above B and C only Question 13 1 / 1 pts If you know that p = .8 and q = .2, what is your frequency of heterozygotes in the population? .64+ 2(.8)(.2) + .04 Correct! .32 .64 .04 + .32 Question 14 0 / 1 pts What is the effect of genetic drift on genetic diversity? You Answered increases genetic diversity Correct Answer decreases genetic diversity 5/9 4/7/2017 Module 7 Lecture Quiz: Speciation and Non­Adaptive Evolution: BSC2005: Biological Sciences, Spring 2017 no effect on genetic diversity Question 15 1 / 1 pts Genetic drift is faster in larger populations. True Correct! False Question 16 1 / 1 pts Hardy­Weinberg is useful in scientific studies of evolution because it: gives good practice in math allows you to calculate allele frequencies if you have p and q Correct! provides a null hypothesis to test against provides an alternate hypothesis to test for Question 17 1 / 1 pts Which of the following is an example of post­zygotic isolation? Correct! The sperm of a goat can fertilize the egg of a sheep, but the embryo fails to develop The offspring of a coyote and a gray wolf produce red wolves that can themselves produce fertile offspring. Darwin's finches adapted to their local environments on different islands. 6/9 4/7/2017 Module 7 Lecture Quiz: Speciation and Non­Adaptive Evolution: BSC2005: Biological Sciences, Spring 2017 none of the above Question 18 1 / 1 pts Non­adaptive evolution would NOT include which of the following? genetic drift Correct! natural selection founder effect genetic bottlenecks Question 19 1 / 1 pts If p = .4 and q = .6, what is the frequency of homozygotes and heterozygotes in your population? (.4)+(.4)(.6) + (.6) Correct! .16+(2)(.4)(.6) + (.36) .16+(.4)(.6) + (.36) .16+(2)(16)(.36) + (.36) Question 20 1 / 1 pts What is the Hardy­Weinberg equation? p² + pq + q² =1 p² + 2pq + q =1 Correct! p² + 2pq + q² =1 7/9 4/7/2017 Module 7 Lecture Quiz: Speciation and Non­Adaptive Evolution: BSC2005: Biological Sciences, Spring 2017 p + 2pq + q² =1 Question 21 1 / 1 pts Which of the following will help reduce the loss of genetic diversity due to genetic drift? gene flow selection a very large population isolation Correct! both A and C Question 22 1 / 1 pts Which of the following is NOT a way for organisms to become reproductively isolated? genitalia that doesn't fit together proteins that kill sperm in the female reproductive tract a courtship song that is not recognized by the opposite sex Correct! migration from one very small population into another. Question 23 1 / 1 pts Which of the following will increase genetic diversity, but is relatively slow? migration Correct! mutation 8/9 4/7/2017 Module 7 Lecture Quiz: Speciation and Non­Adaptive Evolution: BSC2005: Biological Sciences, Spring 2017 selection drift Question 24 1 / 1 pts If you know that p = .7, what is q? .7 Correct! .3 .49 .09 Question 25 1 / 1 pts In the Hardy­Weinberg equation, what do p and q represent? Correct! frequency of 2 alleles in a population frequency of 2 genes in a population whether or not the population evolves homozygous genotypes Quiz Score: 22 out of 25 9/9 ...
View Full Document

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture