Question 1

Any change in allele frequencies in a gene pool is called ____.

Accepted Answer

A) natural selection 
B) macroevolution 
C) microevolution 
D) mutation 
E) artificial selection 
A) natural selection 
B) macroevolution 
C) microevolution 
D) mutation 
E) artificial selection

Question 2

Match between columns
                        Premises: Large antlers are energetically costly and may get stuck on branches, but females prefer to mate with bucks with the largest antlers.

Accepted Answer

The Answer of disruptive selection and sexual selection and founder is...

Question 3

Exposure of wild rat populations to warfarin led to the evolution of warfarin-resistant rats. These rats had a mutated version of the VKORC1 gene, indicating that ____ had occurred in these resistant rat populations.

Accepted Answer

A) extinction 
B) stabilizing selection 
C) microevolution 
D) macroevolution 
E) artificial selection 
A) extinction 
B) stabilizing selection 
C) microevolution 
D) macroevolution 
E) artificial selection

Question 4

What is the original source of new alleles?

Accepted Answer

A) crossing over 
B) independent assortment 
C) fertilization 
D) mutation 
E) mitosis 
A) crossing over 
B) independent assortment 
C) fertilization 
D) mutation 
E) mitosis

Question 5

Match between columns
                        Premises: Two species of hawk are able to mate successfully, but one hunts in the morning and the other hunts at night. Mating between the two species, therefore, does not occur.

Accepted Answer

The Answer of directional selection and sexual selection and founder is...

Question 6

Match between columns
                        Premises: A change in allele frequencies in a population that does not result from adaptation or natural selection.

Accepted Answer

The Answer of sexual selection and directional selection and founder is...

Question 7

In Lake Victoria, hundreds of cichlid fish species arose after the lake last dried up 12,400 years ago. This is an example of ____.

Accepted Answer

A) sympatric speciation 
B) the founder effect 
C) gene flow 
D) genetic drift 
E) allopatric speciation 
A) sympatric speciation 
B) the founder effect 
C) gene flow 
D) genetic drift 
E) allopatric speciation

Question 8

Mutations that result in the death of the individual are known as ____.

Accepted Answer

A) beneficial 
B) lethal 
C) random 
D) spontaneous 
E) neutral 
A) beneficial 
B) lethal 
C) random 
D) spontaneous 
E) neutral

Question 9

Which is an example of macroevolution?

Accepted Answer

A) conserved ancestral features of the modern day coelacanth 
B) the mass extinction of the dinosaurs 66 million years ago 
C) the evolution of humans from primates 
D) the adaptations of flowering plants driven by changes in pollinator behavior 
E) the evolution of antibiotic-resistant bacteria 
A) conserved ancestral features of the modern day coelacanth 
B) the mass extinction of the dinosaurs 66 million years ago 
C) the evolution of humans from primates 
D) the adaptations of flowering plants driven by changes in pollinator behavior 
E) the evolution of antibiotic-resistant bacteria

Question 10

A random change in allele frequency over time that is brought about by chance alone is known as ____.

Accepted Answer

A) genetic drift 
B) gene flow 
C) natural selection 
D) disruptive selection 
E) balanced polymorphism 
A) genetic drift 
B) gene flow 
C) natural selection 
D) disruptive selection 
E) balanced polymorphism

Question 11

In 2000, 87% of the wild rat populations in Stadtlohn, Germany was resistant to the poison bromadiolone. This indicates that ____was/were commonly used as a rat poison(s)here, and the rat's resistance is an example of ____ selection.

Accepted Answer

A) warfarin; directional 
B) bromadiolone; directional 
C) both warfarin and bromadiolone; disruptive 
D) neither warfarin nor bromadiolone; stabilizing 
E) bromadiolone; disruptive 
A) warfarin; directional 
B) bromadiolone; directional 
C) both warfarin and bromadiolone; disruptive 
D) neither warfarin nor bromadiolone; stabilizing 
E) bromadiolone; disruptive

Question 12

Match between columns
                        Premises: The migration of bison from one herd to another results in this.

Accepted Answer

The Answer of genetic drift and reproductive isolation and founder is...

Question 13

What is one result of the bottleneck effect?

Accepted Answer

A) balanced alleles 
B) heterozygosity 
C) decreased genetic diversity 
D) disruptive selection 
E) random mating 
A) balanced alleles 
B) heterozygosity 
C) decreased genetic diversity 
D) disruptive selection 
E) random mating

Question 14

The preference of female cichlid fish for brightly colored blue or red males in Lake Victoria provides an example of ____.

Accepted Answer

A) sympatric speciation 
B) sexual selection 
C) allopatric speciation 
D) reproductive isolation 
E) ecological speciation 
A) sympatric speciation 
B) sexual selection 
C) allopatric speciation 
D) reproductive isolation 
E) ecological speciation

Question 15

The movement of alleles among populations is called _____.

Accepted Answer

A) bottleneck 
B) mutation 
C) founder effect 
D) gene flow 
E) genetic drift 
A) bottleneck 
B) mutation 
C) founder effect 
D) gene flow 
E) genetic drift

Question 16

Peahens prefer to mate with peacocks that have the brightest and largest tail displays. The peacock's tail is a disadvantage to the males, because it is large and cumbersome and hinders them from escaping from predators. Given these facts, why isn't the peacock's tail selected against by natural selection?

Accepted Answer

A) peacocks lack the mutations to allow selection to work 
B) only a few peacocks have large tail displays 
C) in spite of the disadvantage, peacocks with larger tails leave more offspring 
D) it is selected against, but because a peahen gives birth to so many males, the population is not greatly affected 
E) peacocks do not reproduce sexually 
A) peacocks lack the mutations to allow selection to work 
B) only a few peacocks have large tail displays 
C) in spite of the disadvantage, peacocks with larger tails leave more offspring 
D) it is selected against, but because a peahen gives birth to so many males, the population is not greatly affected 
E) peacocks do not reproduce sexually

Question 17

Puppies born too large experience difficulties during birthing and tend to have respiratory and other problems. Puppies born too small often can't compete with their siblings for their mother's milk. Thus, puppies of intermediate size have a survival advantage. This is an example of ____ selection.

Accepted Answer

A) directional 
B) stabilizing 
C) disruptive 
D) frequency 
E) allelic 
A) directional 
B) stabilizing 
C) disruptive 
D) frequency 
E) allelic

Question 18

In the case of the cichlid fish in Lake Victoria, ____ was the driving force of speciation.

Accepted Answer

A) artificial selection 
B) fixed alleles 
C) inbreeding 
D) sexual selection 
E) genetic drift 
A) artificial selection 
B) fixed alleles 
C) inbreeding 
D) sexual selection 
E) genetic drift

Question 19

A 2013 investigation found "worrisome" amounts of ____ in 97% of the chicken meat in stores across the United States.

Accepted Answer

A) bacteria 
B) antibiotics 
C) viruses 
D) vancomycin 
E) DNA 
A) bacteria 
B) antibiotics 
C) viruses 
D) vancomycin 
E) DNA

Question 20

The migratory patterns of many animals encourage ____.

Accepted Answer

A) a bottleneck 
B) mutation 
C) a founder effect 
D) gene flow 
E) genetic drift 
A) a bottleneck 
B) mutation 
C) a founder effect 
D) gene flow 
E) genetic drift

Exam 12: Processes of Evolution

Any change in allele frequencies in a gene pool is called ____.

Exposure of wild rat populations to warfarin led to the evolution of warfarin-resistant rats. These rats had a mutated version of the VKORC1 gene, indicating that ____ had occurred in these resistant rat populations.

What is the original source of new alleles?

In Lake Victoria, hundreds of cichlid fish species arose after the lake last dried up 12,400 years ago. This is an example of ____.

Mutations that result in the death of the individual are known as ____.

Which is an example of macroevolution?

A random change in allele frequency over time that is brought about by chance alone is known as ____.

In 2000, 87% of the wild rat populations in Stadtlohn, Germany was resistant to the poison bromadiolone. This indicates that ____was/were commonly used as a rat poison(s)here, and the rat's resistance is an example of ____ selection.

What is one result of the bottleneck effect?

The preference of female cichlid fish for brightly colored blue or red males in Lake Victoria provides an example of ____.

The movement of alleles among populations is called _____.

Puppies born too large experience difficulties during birthing and tend to have respiratory and other problems. Puppies born too small often can't compete with their siblings for their mother's milk. Thus, puppies of intermediate size have a survival advantage. This is an example of ____ selection.

In the case of the cichlid fish in Lake Victoria, ____ was the driving force of speciation.

A 2013 investigation found "worrisome" amounts of ____ in 97% of the chicken meat in stores across the United States.

The migratory patterns of many animals encourage ____.

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Capturing and Releasing Energy

Dna Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

Filters

In 2000, 87% of the wild rat populations in Stadtlohn, Germany was resistant to the poison bromadiolone. This indicates that was/were commonly used as a rat poison(s)here, and the rat's resistance is an example of selection.