Mutation and Reproduction

Question 1

What is mutation?

Answer 1

A change in the sequence of the DNA bases

Question 2

What are the risks of mutation?

Answer 2

• The shape of an enzyme can be affected

- Can decrease the strength of collagen

Question 3

What are the three different types of mutations?

Answer 3

Insertions, deletions, substitution

Question 4

What is insertion?

Answer 4

A new base is inserted. This has a knock on effect as everything else in the DNA is shifted one place to the right

Question 5

What is deletion?

Answer 5

A base is deleted. This also has a knock on effect

Question 6

What is substitution?

Answer 6

A random base in the DNA is swapped out for another

Question 7

What is a gamete?

Answer 7

A sex cell

Question 8

How many chromosomes does each gamete have?

Answer 8

23

Question 9

What is sexual reproduction?

Answer 9

A sperm and egg fuse

Question 10

Why is the offspring genetically identical to the parent in asexual reproduction?

Answer 10

There is only one parent

Question 11

What is the cell division in asexual reproduction called?

Answer 11

Mitosis