B6 Revision Questions

Question 1

How likely is it that a genetic variant will have a really big effect on an organism’s phenotype?

Answer 1

P86/87

Question 2

Describe how organisms evolve by the process of natural selection

Answer 2

P86/87

Question 3

Define evolution

Answer 3

P86/87

Question 4

Explain how speciation can occur when two populations of a species are isolated

Answer 4

P86/87

Question 5

What a a fossil?

Answer 5

P86/87

Question 6

Other than fossils, give one other example of evidence which shows that species evolve over time.

Answer 6

P86/87

Question 7

What is selective breeding ?

Answer 7

P88/89

Question 8

Give one disadvantage of selective breeding

Answer 8

P88/89

Question 9

Describe one way in which Wallace contributed to the theory of evolution by natural selection

Answer 9

P88/89

Question 10

Describe one way in which the theory of evolution by natural selection has influenced modern biology

Answer 10

P88/89

Question 11

Give one reason why some people do not accept the theory of evolution by natural selection

Answer 11

P88/89

Question 12

How many parents are needed for asexual reproduction?

Answer 12

P90/91

Question 13

Explain why organisms that reproduce sexually may produce fewer offspring in their lifetime than those that reproduce asexually

Answer 13

P90/91