Science Quiz Topic 4 Lesson 5

Question 1

Any change in the DNA or gene of a chromosome is called

Answer 1

Mutation

Question 2

Any difference between the individuals of the same species is called…?

Answer 2

Variation

Question 3

When a gene ‘jumps’ what might happen to an organism’s traits?

Answer 3

new mutations that lead to diseases, such as hemophilia and cancer.

Question 4

Give one example of a helpful and harmful mutation.

Answer 4

A helpful one is one that can protect a person from acquiring heart disease or diabetes, and a harmful one is cancer.

Question 5

What types of activities might alter the way genes are expressed in a negative way?

Question 6

Give one example of a natural change in gene expression.