Punnett Squares

In the Punnett square shown, what must the genotype of the missing parent be?

• BB
• Bb
• bb
• Tt

B = brown fur  b = white fur
In the Punnett square, what is the probability for white fur? 

• 0%
• 25%
• 50%
• 75%

What are the possible genotypes for this cross?
(Click the picture to see it without the text)

• TT = 25% Tt= 50% tt=25%
• all tall
• TT= 75% tt = 25%
• Tt = 100%

What is the dominant trait?

• yellow pea seeds
• green pea seeds
• there is no dominant seed
• Jolly green giant

What genotype would go in box 3?

• BB
• Bb
• bb

What genotype would go in box 1?

• BB
• Bb
• bb

The blending of two traits is known as ---

• incomplete dominance

• codominance

A condition in which both alleles for a gene are expressed so that both traits are visible is known as ---

• Codominance

• Incomplete dominance

A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?

• Incomplete dominance

• Codominance

If you cross a black chicken with a white chicken, only black and white checkered chickens would be produced. What kind of inheritance pattern does this follow?

• Incomplete dominance

• Codominance