Module 7_ Lab Bench Activity_ BSC2005_ Biological Sciences, Spring 2017

This preview shows page 1 out of 5 pages.

Unformatted text preview: 3/29/2017 Module 7: Lab Bench Activity: BSC2005: Biological Sciences, Spring 2017 Module 7: Lab Bench Ac頍�vity Due Feb 17 at 11:59pm Time Limit 120 Minutes Points 10 Questions 10 Available Feb 4 at 2am ­ Feb 24 at 11:59pm 21 days Instruc頍�ons You may use your worksheets and notes form this Module's lectures, readings and activities. The password for this quiz is included in the instructions for the activity that you need to complete before taking the quiz. This quiz was locked Feb 24 at 11:59pm. A埆�empt History LATEST Attempt Time Score Attempt 1 22 minutes 9 out of 10 Score for this quiz: 9 out of 10 Submitted Feb 17 at 11:06pm This attempt took 22 minutes. Question 1 1 / 1 pts In a population that is in Hardy­Weinberg equilibrium, the frequency of the homozygous recessive genotype is .09. What is the frequency of individuals that are homozygous for the dominant allele? 0.07 0.21 0.42 Correct! 0.49 0.91 Question 2 1 / 1 pts When individuals in a population choose which individuals they will mate with on the basis of specific characteristics, this is: 1/5 3/29/2017 Module 7: Lab Bench Activity: BSC2005: Biological Sciences, Spring 2017 chance a bottleneck Correct! assortative mating random mating Question 3 1 / 1 pts When gametes (eggs and sperm) are combined purely on the basis of chance, this is termed: Correct! random mating non­random mating assortative mating none of these Question 4 1 / 1 pts The Hardy­Weinberg equation is useful because it provides a: way to predict how a population will evolve Correct! mathematical model to study changes in allele frequency way to evaluation population growth statistical model to predict change over time Question 5 1 / 1 pts If the frequency of two alleles in a gene pool is 90% A and 10% a, what is the frequency of individuals in the population with the genotype Aa? 2/5 3/29/2017 Module 7: Lab Bench Activity: BSC2005: Biological Sciences, Spring 2017 0.81 0.09 Correct! 0.18 0.01 0.198 Question 6 1 / 1 pts Chance events (random change) results in: migration natural selection selective mating Correct! genetic drift Question 7 1 / 1 pts In humans, Rh­positive individuals have the Rh antigen on their red blood cells, while Rh­negative individuals do not. If the Rh­positive phenotype is produced by a dominant gene (A), and the Rh­negative phenotype is due to its recessive allele (a), what is the frequency of the Rh­positive allele if 84% of a population is Rh­positive? 0.04 0.16 0.48 Correct! 0.60 0.84 3/5 3/29/2017 Module 7: Lab Bench Activity: BSC2005: Biological Sciences, Spring 2017 Question 8 1 / 1 pts The Hardy­Weinberg equation almost never holds true in real life because: there is no natural selection it requires assortative mating Correct! populations and allele frequencies are always changing populations and allele frequencies cannot be calculated. Question 9 0 / 1 pts Either emigration or immigration can: You Answered lead to genetic drift lead to mutation Correct Answer cause a change in the composition of the gene pool lead to inbreeding Question 10 1 / 1 pts Mutation can result in: violation of Hardy­Weinberg conditions a change in allelic frequencies Correct! both of the above neither of the above 4/5 3/29/2017 Module 7: Lab Bench Activity: BSC2005: Biological Sciences, Spring 2017 Quiz Score: 9 out of 10 5/5 ...
View Full Document

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture