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Flashcards in test 2 Deck (43)
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1

change in trait making bearer better suited to survive / reproduce

adaptations

2

Method of Lederber's to demonstrate mutation as a random process

Replica plating

3

involves abnormal placement of body parts

homeotic mutation

4

humans are the "asteroid" bringing about the ____ mass extinction

sixth

5

codes for a stop codon and can truncate protein

nonsense mutation

6

the difference in trait means of a population before and after selection

selection coefficient/ differential

7

bad mutations accumulate irreversibly, increasing genetic burden

muller's ratchet

8

explain how rare reptiles successfully colonize islands

rafting

9

involve duplication of chromosomes in a hybrid of 2 species

allopolyploid

10

insertion or deletion of a single base in the DNA sequence

frameshift mutation

11

taxa evolved separately to occupy similar niches in different areas

ecological equivalence

12

certain species live in one place and nowhere else

endemism

13

selects against less adapted individuals at one tail of the distribution

directional selection

14

fragmentation of a continuous distribution by the emergence of a barrier

vicariance

15

asexual lineages grow faster in each generation because all offspring (females) can reproduce

two fold cost of sex

16

account for the present distribution of Psychotria trees across the Hawaiian archipelago

dispersal

17

general type of mutation involving passage to descendants through gametes

germ line

18

when an organism increases it survival advantage in one area at the expense of another

tradeoff

19

Leigh an Valen discovered an evolutionary idea called

Red Queen Effect

20

researchers initially found asexual reproducers were taking ___ parasite loads than/as sexual producers. after a drought, sexual reproducers were taking ___ parasite loads than/as asexual reproducers because they had ___ amounts of genetic variability

increase
increase
decrease

21

domestication of plants and animals occurred about ___ yrs ago

9,000

22

nearly all of the 14 wild plant eating terrestrial mammals domesticated by humans came from Asia, ____, and Europe.

N Africa

23

the big four domesticated animals are

goats, sheep, pigs, and cattle

24

Tim Mousseau noted ___ frequencies of tumors and physical abnormalities in animals in hot areas than uncontaminated areas, but the some ___ (organism) may actually be adapting to high radiation levels

increase
birds

25

what was not features in Mousseau's study

lizard

26

foxes that were tolerant and curios were ___ together

mated

27

the new generation of foxes transformed in behavior but also ___ known as ___ traits

appearance
correlated

28

from the lecture, most mutations are ___ and their individual fitness effects are ___

neutral
small

29

rank innovations from oldest to youngest in chronological order

collagen & true tissue.
gastrula, ectoderm, and endoderm.
mesoderm.
hemocoel.
segmentation.

30

streptomycin mechanism of bacterial resistance to its antibiotics

mutated gene code for ability to alter antibiotic target