Traits & Heredity!

Click all of the genotypes.

• brown eyes

• Bb

• AA

• blue eyes

Click all the phenotypes.

• aa

• BB

• brown eyes

• curly hair

True or False: Alleles are different versions of the same trait.

• True

• False

A mother is dominant for brown eyes, BB, and the father is recessive for blue eyes, bb. Which is the phenotype of the mother?

• brown eyes

• BB

• blue eyes

• bb

A mother is dominant for brown eyes, BB, and the father is recessive for blue eyes, bb. Which is the genotype of the father?

• brown eyes

• BB

• blue eyes

• bb

If both parents have a genotype, BB, for brown hair. What is the probability their offspring will have brown hair?

• 25%

• 50%

• 50%

• 100%

What is necessary for an organism to express a recessive trait?

• two dominant alleles coming together, one from each parent.

• one dominant and one recessive allele coming together

• two recessive alleles coming together, one from each parent.

• an organism will never show a recessive trait

Who are the organisms on the sides of a Punnett Square?

• the parents

• the offspring

• granparents

• none

True or False: The purpose of a Punnett Square is to predict the genes of the parents.

• True

• False

What is a chromosome?

• a combination of genes responsible for a particular trait

• different variations of the same trait

• study of heredity and how traits are passed on to different generations

• tightly wound bundle of DNA