Question 1

In exon shuffling, the duplicated or rearranged exons appear as new domains in different genes.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following is NOT a step to calculate a coefficient of inbreeding?

Accepted Answer

A)  Determine the mutation rate. 
B)  Determine the total number of common ancestors. 
C)  Determine the shortest inbreeding path between the individual and the common ancestor. 
D)  Calculate the inbreeding path for each common ancestor. 
E)  Place values in the inbreeding coefficient formula. 
A)  Determine the mutation rate. 
B)  Determine the total number of common ancestors. 
C)  Determine the shortest inbreeding path between the individual and the common ancestor. 
D)  Calculate the inbreeding path for each common ancestor. 
E)  Place values in the inbreeding coefficient formula.

Question 3

A heterogeneous environment is typically a ______ factor against the fitness of the population.

Accepted Answer

A) Negative 
B) Positive 
C) Neutral 
A) Negative 
B) Positive 
C) Neutral

Question 4

A gene that is found in less that 1% of a given population is called monomorphic.

Accepted Answer

A) True 
 B)False

Question 5

The probability that a gene will be altered by a mutation is called the mutation rate.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is not true concerning a population in equilibrium according to the Hardy-Weinberg rule?

Accepted Answer

A) There is no migration into or out of the population 
B) Individuals of the population mate randomly 
C) The population size is very large 
D) Selection is favoring the dominant allele 
E) There is no mutation in the populations 
A) There is no migration into or out of the population 
B) Individuals of the population mate randomly 
C) The population size is very large 
D) Selection is favoring the dominant allele 
E) There is no mutation in the populations

Question 7

If the allele frequency of the dominant allele is 0.4, what value is used for the term p2 in the equation p2 + 2pq + q2 = 1?

Accepted Answer

A) 0.4 
B) 0.2 
C) 0.16 
D) 16 
A) 0.4 
B) 0.2 
C) 0.16 
D) 16

Question 8

The coefficient of inbreeding (F) tells us what about an individual?

Accepted Answer

A) The probability that they are homozygous due to inheritance from a common ancestor 
B) Their genotype 
C) The probability of obtaining a certain allele from the gene pool 
A) The probability that they are homozygous due to inheritance from a common ancestor 
B) Their genotype 
C) The probability of obtaining a certain allele from the gene pool

Question 9

Which of the following will alter the frequency of alleles in the population the least?

Accepted Answer

A) Mutation 
B) Natural selection 
C) Genetic drift 
D) Migration 
E) All of the answers are equal 
A) Mutation 
B) Natural selection 
C) Genetic drift 
D) Migration 
E) All of the answers are equal

Question 10

Which of the following factors would result in the allele frequency of a population not adding up to 1.0, as is the case in the Hardy-Weinberg rule?

Accepted Answer

A) Genetic drift 
B) Inbreeding 
C) A population changing due to selection 
D) None of the answers, the allele frequencies must always equal 1.0 
A) Genetic drift 
B) Inbreeding 
C) A population changing due to selection 
D) None of the answers, the allele frequencies must always equal 1.0

Question 11

Horizontal gene transfer is limited to between prokaryotic bacteria of the same species.

Accepted Answer

A) True 
 B)False

Question 12

In a given population of Drosophila, curly wings (c) is recessive to the wild-type condition of straight wings (c+). You isolate a population of 35 curly winged flies, 70 flies that are heterozygous for straight wings and 45 that are homozygous for straight wings. What is the total number of alleles in the gene pool?

Accepted Answer

A)  2 
B)  150 
C)  230 
D)  300 
E)  140 
A)  2 
B)  150 
C)  230 
D)  300 
E)  140

Question 13

The movement of alleles from one population to another is called population flow.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following types of selection favors the survival of individuals with the intermediate phenotype?

Accepted Answer

A) Disruptive selection 
B) Stabilizing selection 
C) Directional selection 
A) Disruptive selection 
B) Stabilizing selection 
C) Directional selection

Question 15

New genetic variation in a population is a critical aspect of microevolution.

Accepted Answer

A) True 
 B)False

Question 16

The characteristics of a given population over time are ________.

Accepted Answer

A) Dynamic 
B) Static 
A) Dynamic 
B) Static

Question 17

In a certain population, the frequency of allele A is 0.3 and the frequency of allele a is 0.7. The population inbreeds such that f = 0.1. What is the frequency of each genotype in the population?

Accepted Answer

A) AA: 0.09, Aa: 0.42, aa: 0.49 
B) AA: 0.49, Aa: 0.42, aa: 0.09 
C) AA: 0.01, Aa: 0.90, aa: 0.09 
D) AA: 0.111, Aa: 0.378, aa: 0.511 
E)  AA: 0.21, Aa: 0.42, aa: 0.37 
A) AA: 0.09, Aa: 0.42, aa: 0.49 
B) AA: 0.49, Aa: 0.42, aa: 0.09 
C) AA: 0.01, Aa: 0.90, aa: 0.09 
D) AA: 0.111, Aa: 0.378, aa: 0.511 
E)  AA: 0.21, Aa: 0.42, aa: 0.37

Question 18

Migration of a random few individuals from one population to a new area to establish a new population is an example of ____

Accepted Answer

A) Bottleneck effect 
B) Mutation 
C) Founder effect 
D) Selection 
A) Bottleneck effect 
B) Mutation 
C) Founder effect 
D) Selection

Question 19

In this equation p2 + 2pq + q2 = 1, what does the term 2pq represent?

Accepted Answer

A) The genotype frequency of homozygous recessive individuals 
B) The genotype frequency of homozygous dominant individuals 
C) The genotype frequency of heterozygous individuals 
D) The sum of the phenotype frequencies in the population 
A) The genotype frequency of homozygous recessive individuals 
B) The genotype frequency of homozygous dominant individuals 
C) The genotype frequency of heterozygous individuals 
D) The sum of the phenotype frequencies in the population

Question 20

Human society favors outbreeding, or the mating of individuals that are genetically unrelated.

Accepted Answer

A) True 
 B)False

Exam 26: Population Genetics

In exon shuffling, the duplicated or rearranged exons appear as new domains in different genes.

Which of the following is NOT a step to calculate a coefficient of inbreeding?

A heterogeneous environment is typically a ______ factor against the fitness of the population.

A gene that is found in less that 1% of a given population is called monomorphic.

The probability that a gene will be altered by a mutation is called the mutation rate.

Which of the following is not true concerning a population in equilibrium according to the Hardy-Weinberg rule?

If the allele frequency of the dominant allele is 0.4, what value is used for the term p2 in the equation p2 + 2pq + q2 = 1?

The coefficient of inbreeding (F) tells us what about an individual?

Which of the following will alter the frequency of alleles in the population the least?

Which of the following factors would result in the allele frequency of a population not adding up to 1.0, as is the case in the Hardy-Weinberg rule?

Horizontal gene transfer is limited to between prokaryotic bacteria of the same species.

The movement of alleles from one population to another is called population flow.

Which of the following types of selection favors the survival of individuals with the intermediate phenotype?

New genetic variation in a population is a critical aspect of microevolution.

The characteristics of a given population over time are ________.

In a certain population, the frequency of allele A is 0.3 and the frequency of allele a is 0.7. The population inbreeds such that f = 0.1. What is the frequency of each genotype in the population?

Migration of a random few individuals from one population to a new area to establish a new population is an example of ____

In this equation p2 + 2pq + q2 = 1, what does the term 2pq represent?

Human society favors outbreeding, or the mating of individuals that are genetically unrelated.

Overview of Genetics

Mendelian Inheritance

Chromosome Transmission During Cell Division and Sexual Reproduction

Extensions of Mendelian Inheritance

Non-Mendelian Inheritance

Genetic Linkage and Mapping in Eukaryotes

Genetic Transfer and Mapping in Bacteria and Bacteriophages

Variation in Chromosome Structure and Number

Molecular Structure of DNA and RNA

Chromosome Organization and Molecular Structure

DNA Replication

Gene Transcription and RNA Modification

Translation of MRNA

Gene Regulation in Bacteria

Gene Regulation in Eukaryotes I: Transcriptional Regulation

Gene Regulation in Eukaryotes II: Epigenetics and Regulation at the RNA Level

Genetics of Viruses

Gene Mutation and Dna Repair

Recombination and Transposition at the Molecular Level

DNA Technologies

Biotechnology

Genomics I: Analysis of DNA

Genomics II: Functional Genomics, Proteomics, and Bioinformatics

Medical Genetics and Cancer

Developmental Genetics

Quantitative Genetics

Evolutionary Genetics

Filters

If the allele frequency of the dominant allele is 0.4, what value is used for the term p² in the equation p² + 2pq + q² = 1?

In this equation p² + 2pq + q² = 1, what does the term 2pq represent?