evolution and adaptation

Question 1

Can individual evolve

Answer 1

no

Question 2

Darwins suggestions

Answer 2

-mechanism of adaptive evolution
-artificial selection:change based on exaggerated desires
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Question 3

indehiscence

Answer 3

the trait where grains do not naturally disperse their seed

Question 4

dehiscence

Answer 4

natural dispersion of grains

Question 5

for adaptive evolution to occur via natural selection n

Answer 5

Genetic basis for individual trait variation, individual phenotypic variation in a treat involved in resource acquisition,-limited resource

Question 6

punctured equilibrium

Question 7

sympatric speciation

Answer 7

-no geographical isolation, separated by ecological factors

Question 8

parapatric speciation

Question 9

gradualistic evolution allopatric speciation

Question 10

homeotic gene

Question 11

strong stabilization selection

Question 12

cladogenesis

Answer 12

accumulation of changes in 2 or more descendent species,favor individuals at both extremes

Question 13

anagenesis

Answer 13

refers to gradual evolution within a single lineage, without branching into new species. Disruptive selection is more likely to split populations rather than lead to continuous change in one.

Question 14

allopolyploidy

Question 15

autopolyploid

Answer 15

autopolyploid involves chromosome duplication within a single species, creating a polyploid organism. This is a genetic mutation rather than a result of disruptive selection.

Question 16

deleterious genes

Answer 16

deleterious genes can be maintained within a larger population because of diploidy.

Question 17

negative frequency-dependant