genetics review day 3

Long hair is a dominant trait. Choose the BEST statement.

• This guinea pig received two dominant traits. (HH)

• This guinea pig cannot have a recessive allele. (h)

• This guinea pig could be homozygous dominant (HH) or heterozygous (Hh)

• This guinea pig is homozygous recessive (hh)

What is the probability of heterozygous offspring?

• 25%
• 50%
• 0%
• 100%

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

• 0%
• 25%
• 50%
• 75%

In the Punnett square what is the probability that flowers will have a white flower?

• 3 in 4

• 1 in 4

• 2 in 4

• 4 in 4

What you see, or the physical appearance.

• Genotype
• Phenotype
• Homozygous
• Heterozygous

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

• tt
• Tt
• Bb
• TT

What allele combination should go in the missing box?

• AA
• Aa
• aa
• none of these

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

• 0 %
• 25%
• 50%
• 75%

The parent flowers could both be described as ____

• homozygous recessive

• homozygous dominant

• heterozygous

• phenotypes

If a heterozygous tall pea plant is crossed with a short pea plant, what are the possible genotypes of the future offspring?

• 100% Tt
• 50% Tt, 50% tt
• 75%Tt, 25%tt
• 25%TT, 50%Tt, 25%tt