What is the name of the scientist nicknamed "the father of genetics"?

• Isaac Newton

• Marie Curie

• Gregor Mendel

• Sir Gregor Clegane

What types of plants did Mendel grow in order to understand heredity?

• Pea

• Banana

• Bean

• Rice

How many pairs of chromosomes does each person have?

• 46

• 23

• 2

• 1,046,023

The trait that will always be expressed if at least one copy of an allele is present.

• Recessive

• Dominant

• DNA

The trait that will be expressed only if two copies of the allele are present.

• Recessive

• Dominant

• DNA

What is it called when a gene carries two different types of alleles?

• Homozygous

• Heterozygous

• Monozygous

• Trizygous

What is it called when a gene carries two of the same alleles?

• Homozygous

• Heterozygous

• Monozygous

• Mamazygous

For the next few questions, consider the facts that capital letters are used for dominant and lowercase letters are used for recessive traits.

Additionally, if a lowercase and an uppercase letter are paired together, the gene is heterozygous. If a gene has two lowercase letters or two uppercase letters, the gene is homozygous.

• I understand

• Got it

Which of the following is heterozygous?

• FF

• Gg

• tt

• RR

Which of the following is homozygous recessive?

• rr

• TT

• AA

• Ff