Ch17 Variation, Evolution and genetic engineering

Question 1

variation

Answer 1

the difference between individuals of the same species

Question 2

inherited variations

Answer 2

are the differences within a species that are controlled by genes

Question 3

acquired variation

Answer 3

are differences withing a species that develop ove the life of the organism

Question 4

mutation

Answer 4

a change in the structure or amount of DNA in an organism

Question 5

mutagens

Answer 5

agents that change the DNA in a cell

Question 6

evolution

Answer 6

changes between members of a species and the emergence of new species from older species over time, in responce to change in the environment, due to natural selection

Question 7

natural selection

Answer 7

the mechanism by which members of a species, with genetic traits that allow them to survive in their environment, reproduce and pass these traits to the next generation

Question 8

genetic engineering

Answer 8

the alteration and manipulation of genes