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1

all of the following are true of evolution except

-individs adapt their genes to improve survival

2

which is necessary for natural selection to proceed?

-all of the above ; variation within a population
a mach

3

natural selection causes?

- changes in allele frequencies within a population

4

all of the following are true of natural selection except

- it works best in genetically uniform populations

5

natural selection that favors survival of extreme phenotypes of a population is called

- diversifying selection

6

which of the following is more fit?

- a 500 year old bristlecone pine tree hat produced 100 offspring every yr

7

when extreme phenotypes are selected against and disappear, which pattern of natural selection is at work

-stabilizing selection

8

allele frequency of a population can change by

-all of the above
natural selection
genetic drift
mutations in the gene pool
founder effect

9

the biological species concept defines a species as

-member of population that interbreed and produce fertile offspring

10

frog species mate different times of the year. this is an example of which type of reproductive isolation

-temporal isolation

11

-reproductive isolation based on location or geography is referred to as

-ecological isolation

12

pollen from a tomato plant lands on a grape fruit flower. the pollen fails to grow a pollen tube this is an example of ?

- gametic isolation

13

which of the following can influence the evolution of a species

-all of the above
mutations
natural selection
genetic flow
genetic drift

14

which of the following best points to a close evolutionary relationship between two different species?

-both species have very similar dna

15

the proportion of alleles present in a gene pool is called the ______ and is an important tool in measuring evolutionary changes

-allele frequency

16

in a population of 100 mice, if the recessive gene allele frequency is .25 how many copies of the recessive allele are found in the population

50
-

17

which of the following does not influence allele frequencies in a population

all of the above influence allele frequencies in a populations-

18

inbreeding can lead to a decrease in genetic diversity and _______

inbreeding depression-

19

which of the following is not an example of adaptive evolution?

-all
founder effect
gene flow
bottle neck
mutation

20

you examine a population and note that its allele frequency for a particular where B represents the dom allele and b represents the rec allele, you find that the allele frequencies for this gene are p=.3 and q=.7 if this pop is not evolving what would be the frequency of the heterozygous genotype

.42

21

which of the following situations would represent a situation that reduces that effect of genetic drift

-the population is very large

22

if you examine the gene pool of a pop that is evolving due to genetic drift what do you predict will occur

- there is no way to tell how p or q will change

23

which of the following condition can lead to two populations booming different species

-all of the above. individuals in the two populations mate at diff times, ****finish

24

which of the following statements is FALSE

- the 13 diff species of fincehs flew tp the gallop island and separated themselve in response to diff food enviro

25

all of darwins finches came from a single species with a normal break which of the following factors can explain the development of the variety of beaks in these finches today

-**********fininsh ab and c

26

which of the following statements regarding the dating of fossils is false

fossils can be daed using a microscope -

27

which of the following scenarios would be least likely to result in a fossil

-a jellyfish that dies and slowly floats to the bottom the ocean

28

which of the following changes in the evolutionary history of horses is documented by the fossil record

-a graduals decrease in the number of toes

29

which of these characteristics would be expected to apply to a traditional fossil

- it should have some similarities to species that live before and after it

30

which of the following sequences places tiktaalik in the correct evolutionary order?

lobe finned fish tiktaalik tertapods-