Kahoot

Question 1

Term for phenomenon that causes allele frequencies to fluctuate in a population due to random chance

Answer 1

Genetic drift

Question 2

Females are the choosy sec because

Answer 2

Eggs and offspring are costly to produce

Question 3

Our best evidence suggests that life on earth arose

Answer 3

3.8 bya

Question 4

Eusocial groups include all except

Answer 4

All social animals
INCLUDES: a sterile worker caste, overlap of generations working together, group members cooperating to rear young

Question 5

Allopatric speciation occures when populations

Answer 5

are geographically isolated

Question 6

Hybridized animals

Answer 6

sterile

Question 7

Display post-zygotic reproductive isolation

Answer 7

Sterile and unable to produce offspring

Question 8

Indirect fitness is increased when

Answer 8

an individual helps a genetic relative raise their offspring

Question 9

When a trait that is costly to survival is attractive to a mate, its evolution is best explained by

Answer 9

The handicap principle

Question 10

The good genes hypothesis

Answer 10

display honest advertisement (handicap) They indicate heritable viability

Question 11

Sexual antagonism

Answer 11

beneficial to one but hurts the other

Question 12

Assortive mating

Answer 12

tendency to choose mates who are more similar or dissimilar to themselves in phenotypes
Ex: peacocks

Question 13

Leads to more variation in populations

Answer 13

mutation

Question 14

Sexual selection

Answer 14

some individuals have traits that make them more likely to mate than others

Question 15

Directional selection results in

Answer 15

favored allele becoming fixed over time

Question 16

Disassortive mating

Answer 16

heterozygotes increase bc opposites attract.
Does not affect allele frequencies

Question 17

Dominant allele becoming fixed in all cases

Answer 17

Assortive mating: inbreeding

Question 18

Hardy-Weinberg equilibrium

Answer 18

…

Question 19

Define evolution from a population genetics oerspective

Answer 19

A change in the frequency of all allele in a population

Question 20

If population is not in HWE, what can be inferred?

Answer 20

one of the rules is being violated
random mating
no mutations
no migrations
infinite population size
no natural selection

Question 21

Rock pocket mice

Answer 21

Volcanic rock, different fur color
Mc1r

Question 22

Role of Mc1r

Answer 22

agouti is an antogonist of Mc1r; local expression of agouti results in decreased sythnthesis of uemelanin and increased production of pheomelanin

Question 23

Natural selection requires

Answer 23

-Variation
-heritability of variation
-differential reproductive success

Question 24

T or F: Natural selection causes mutations that increase the fitness of individuals

Answer 24

False: it can give bad fitness too

Question 25

In a population that is in HWE, what is the expected frequency of Aa heterozygotes

Answer 25

2pq

Question 26

Frequency if dominant

Answer 26

p

Question 27

Frequency of recessive

Answer 27

q

Question 28

HWE

Answer 28

p² + 2pq + q²

Question 29

Calculating observed genotype frequency

Answer 29

• find total individuals and divide
  AA= %
  Aa= %
  aa= %

Question 30

Calculating observed allele frequency

Answer 30

• from each letter (allele) (p and q)
  AA + 1/2[Aa]
  aa + 1/2[Aa]

Question 31

Calculating expected genotype frequency

Answer 31

use equation
p² and the rest

Question 32

Endosymbiotic theory

Answer 32

nom but not nom nom
describes how some eukaryotic organelles arose from free-living prokaryotes

Question 33

evolution of altruistic behaviors the benefit close relatives

Answer 33

kin selection