Genetics

What is heredity?

• A kind of genetic disorder

• The way that DNA divides

• A trait you inherit from your parents.

• The passing down of traits from parents to children.

Besides genetics, what other factors are responsible for how you will grow and develop?

• How you treat other people

• How hard you study for school

• Nutrition and environment

• What your parents look like

Which of the following depicts a molecule of DNA?

Which of the following statements is true?

• Your set of DNA is the same as your siblings

• Your set of DNA is the same as your mother's

• Your set of DNA is the same as your father's

• Your set of DNA is unique to you

Which of the following is completely determined by your genes?

• Your weight

• Your bone structure

• Your personality

• Your intelligence

Curly hair is dominant, and straight hair is recessive. If a curly-haired man has a baby with a straight-haired woman, what will happen?

• The baby will definitely have curly hair.

• The baby will definitely have straight hair.

• The baby will probably have curly hair.

• The baby will probably have straight hair.

Why are your chromosomes arranged in pairs?

• Scientists aren't sure

• Because you get one from your mother, and one from your father

• Because pairs are able to divide more easily

• Because DNA has a double helix structure

What is the relationship between DNA and chromosomes

• Chromosomes are made out of DNA

• DNA is made out of chromosomes

• DNA and chromosomes are the same thing

• DNA forces chromosomes to mutate

How many pairs of chromosomes exist in each of your cells?

• 10

• 12

• 19

• 23

How are these cells different from other cells?

• They have double the normal amount of genes.

• They have half the normal amount of genes.

• They have no genes.

• They have triple the normal amount of genes.