Variation

Question 1

How characteristics are developed?

Answer 1

Chromosomes - found in nucleus - contain many genes

Gene - section of DNA, which carries coding for a particular protein.

Genes control the development of an organism

Question 2

Why there are differences in individuals?

Answer 2

inherited different genes - children receive half their inherited features from each parent:

• eye color
• hair color
• skin color

conditions in which they have developed:

• climate
• diet
• accidents