Population Genetics And Natural Selection

Question 1

Process that changes populations of organisms over time

Answer 1

Evolution

Question 2

Competition for limited resources such as food, space, water

Answer 2

Survival of the fittest

Question 3

An evolutionary process that changes anatomy, physiology, and behavior, resulting in an improved ability

Answer 3

Adaptation

Question 4

Rare traits, no matter how favorable, would be blended out of a population

Answer 4

Blending inheritance

Question 5

Augustinian monk, developing the facility with mathematics necessary to complete theory of natural selection

Answer 5

Gregor Mendel

Question 6

Famous and influencial work of Gregor Mendel

Answer 6

Pisum sativum

Question 7

Alternative form of genes

Answer 7

Alleles

Question 8

Consists of observable characteristics, which result interactions between the genetic makeup of the individual and it’s environment

Answer 8

Phenotype

Question 9

Sticky cinquefoil

Answer 9

Potentilla grandulosa

Question 10

Variation among individuals in form and function as a result of environmental influences

Answer 10

Phenotypic plasticity

Question 11

Acts to impede changes or stop changes in population

Answer 11

Stabilizing selection

Question 12

Have lower rates of reproduction and survival

Answer 12

Extreme phenotypes

Question 13

Favors an extreme phenotype over other one phenotype in the population

Answer 13

Directional selection

Question 14

It favors two or more extreme phenotypes over the average phenotypes in a population

Answer 14

Disruptive selection

Question 15

Evolution by natural selection depends upon the

Answer 15

Heritability of traits

Question 16

Environment has substantial effect in many aspects of the phenotype of organisms

Answer 16

Environmental variance

Question 17

Among individuals in the population

Answer 17

Genetic variation

Question 18

Egg size among Ural Owl

Answer 18

Stabilizing selection

Question 19

Adaptation by soapberry bugs to new host plants

Answer 19

Directional selection

Question 20

Population of Darwin’s finches

Answer 20

Disruptive selection

Question 21

Genus with larger beaks are able to crack and feed on larger seeds

Answer 21

Geospiza

Question 22

Change in the frequency of an existing gene variant in the population due to random chance

Answer 22

Genetic drift

Question 23

Two main types of genetic variation

Answer 23

Bottleneck event
Founding event

Question 24

The original population undergoes a random event

Answer 24

Bottleneck event

Question 25

A number of individuals in a particular population is isolated from that population

Answer 25

Founding event

Question 26

Evidence of genetic drift in

Answer 26

Chihuahua spruce

Question 27

Predicts that small population size will be more subject to genetic drift

Answer 27

Hardy-Weinberg Principle

Question 28

Organisms are solely found in a particular area or habitat

Answer 28

Endemic

Question 29

Is the mating between close relatives

Answer 29

Interbreeding

Question 30

Indicator of genetic variability

Answer 30

Heterozygosity

Question 31

Animal and plant breeder have produced thousands of variaties of domesticated plants

Answer 31

Artificial selection

Question 32

Alteration of genetic makeup of an organism through the introduction or deletion of genes

Answer 32

Genetic engineering

Question 33

The world’s most widely herbicide, commonly sold under the trade name roundup

Answer 33

Glyphosate