Heredity Pre-Assessment

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

• 0 %

• 25%

• 50%

• 75%

• I don't know.

Which of the following is a phenotype?

• Aa

• red hair

• heterozygous

• DNA

• I don't know.

What are the possible phenotype(s) of the offspring? (A-Brown hair; a-blond hair)

• 50 % Brown Hair and 50% Blond Hair

• 25 % Brown Hair and 75% Blond Hair

• 75 % Brown Hair and 25% Blond Hair

• 0% Brown Hair and 100% Blond Hair

• I don't know.

In pea plants: T=tall t=short

What ratio of the offspring could be short?

• 0 in 4

• 1 in 4

• 2 in 4

• 4 in 4

• I don't know.

In a certain species of plant, the color purple (P) is dominant to the color white (p).

According to the Punnett Square, what is the probability of an offspring being purple?

• 25%

• 0%

• 100%

• 50%

• I don't know.

What is the yellow seed genotype?

• aa

• Aa

• AA

• AA or Aa

• I don't know.

What is the probability of heterozygous offspring?

• 0%

• 100%

• 50%

• 25%

• I don't know.

What allele combination should go in the missing box?

• AA

• Aa

• aa

• none of these

• I don't know.

What genotype would go in box 4?

• BB

• Bb

• bb

• I don't know.

What is the missing allele?

• a

• A

• AA

• aa

• I don't know.