miterm 1 Flashcards

(44 cards)

1
Q

law of superstition

A

newer stuff is on top

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2
Q

kiwi’s wings are examples of

A

vestigial traits

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3
Q

similar traits due to similar common ancestry

A

homologies

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4
Q

similar genetic sequences in species that are closely related

A

genetic homologies

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5
Q

similar embryonic traits amount related species

A

developmental homologies

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6
Q

similar structures across related organisms despite different functions

A

structural homology

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7
Q

finches are what to the Galápagos Islands

A

endemic

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8
Q

closely related species tend to..

A

be on closer islands

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9
Q

blakiston’s line divided

A

species of raccoon dogs in north and south japan

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10
Q

the frequency of homo or heterozygote genotypes in the population

A

genotype (MM Mm mm)

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11
Q

p is

A

frequency of MM and half of Mm

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12
Q

q is

A

mm and half of Mm

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13
Q

p+ q =

A

1

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14
Q

frequency of MM should be

A

p^2

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15
Q

freq of Mm should be

A

2pq

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16
Q

the frequency of mm should be

A

q^2

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17
Q

if q=.6 and the frequency of mm is .36 is it in hardy-Wienberg?

A

yes .6 x .6 = .36

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18
Q

how do you know if it’s HWE?

19
Q

when we violate hardy-weinburg assumptions

A

the result is evolution!

20
Q

evolution is

A

a change is allele frequencies from one generation to the next

21
Q

hardey-weinburg is like..

A

a null hypothesis

22
Q

melanism in wolves is

23
Q

genetic drift is due to

A

sampling error

24
Q

how much variation in fixation?

25
effective population size
measure of how much drift a population is experiencing
26
why the effective population is less often less then the actual population size?
nonrandom mating
27
inbreeding leads to less
homozygotes
28
why doesn't natural selection get rid of deleterious recessive alleles?
because they exist of heterozygotes
29
extinction of competitors would not lead to
adaptive radiation
30
biggest extinction
Permian extinction
31
gorillas have less loss of function alleles because of
inbreeding
32
stabilizing selection is
is skinnier
33
balancing selection
doesn't change
34
things that looks like are probably the same species
morphospecies concept
35
polymorphic
discrete kinds within a species
36
dimorphism example
mallard ducks
37
biological species concept is determined by
reproductive isolation
38
prezygotic isolation
cock blocking ( before fertilization)
39
postzygotic isolation
'plan b' offspring do not survive or reproduce
40
phylogenies species concept
if they are a single evolutionary lineage
41
allopatry includes
dispersal and vicariance
42
vicariance
splitting of population
43
Polyphyly
doesn't include the most recent common ancestor
44
In electric fish one spectates more because
it can distinguish more electric currents because of a bigger brain