SB4 Natural selection and genetic modification

Question 1

What does “survival of the fittest” mean?

Answer 1

Organisms that are best adapted to their surroundings are more likely to survive

Question 2

What is the theory of evolution?

Answer 2

The theory of evolution by natural selection explains how species evolve, or change through time, sometimes changing so much that new species are created.

Question 3

Who came up with the theory of evolution?

Answer 3

Charles Darwin and Alfred Russel Wallace

Question 4

what is genetic modification also known as?

Answer 4

Genetic engineering

Question 5

what is genetic engineering?

Answer 5

Changing the characteristics of an organism by transferring a piece of DNA from one organism to a different organism.

Question 6

What are some advantages of genetic engineering?

Answer 6

• improve crop yield
• introduce herbicide resistance
• better quality of food

Question 7

what are some risks of genetic engineering?

Answer 7

-GMO crops could cause allergic reaction in some people

Question 8

what is selective breeding?

Answer 8

breeders select two parents that have beneficial characteristics to reproduce, and so then the offspring have those desired traits