Punnett Squares and Dominant-Recessive Inheritance.

T - tall and t = short
In the punnett square below, what belongs in the missing square

• tt
• Tt
• Bb
• TT

What you see, or the physical appearance.

• Genotype
• Phenotype
• Homozygous
• Heterozygous

What is the probability of heterozygous offspring?

• 25%
• 50%
• 0%
• 100%

What allele combination should go in the missing box?

• AA
• Aa
• aa
• none of these

Each one of the boxes on the Punnett Square represents what probability of an offsprings' genotype?

• 25%
• 1%
• 10%
• 0%

Which choice best represents the genotype of this cross?

• 1 Yy: 2 yy: 0 YY
• 2 Yy: 2 yy: 0 YY
• 3 Yy: 1 yy: 0 YY
• 1 Yy: 3 yy: 0 YY

What is the phenotype 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 

Which of the following genotypes is homozygous dominant?

• A
• Aa
• AA
• aa

Which of the following genotypes is heterozygous?

• Bb
• BB
• bb
• B

Which of the following is homozygous recessive?

• Tt
• tt
• TT
• T