Genetics

Which of the following is a phenotype?

• BB
• Bb
• bb
• Blue eyes

having two of the same genes for the trait (sometimes called purebred).

• homozygous
• hetrozygous
• protein
• chromosome

Tags

NGSS.HS-LS3-1

having two different genes for a trait (sometimes called hybrid).

• protein
• homozygous
• heterozygous
• genotype

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

• 0 %
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?

• 100% BB
• 75% BB and 25%Bb
• 50 % BB and 50% Bb
• 50% Bb and 50% bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Red/green color blindness is a recessive trait.  A woman who is a carrier for this allele marries a normal-vision male.  What is the probability that they will have a child who is color blind?

• 1/4
• 1/2
• 3/4
• 1

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Which of the following genotypes is a purebred?

• Bb
• Gg
• bb
• Dd

What is the phenotype of the heterozygous parent in the punnett square?

• green
• yellow
• hybrid
• purebred

Tags

NGSS.HS-LS3-1

What percentage of the offspring will have this recessive disease?

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

In a certain species of animal, black fur (B) is dominant over tan fur (b).  If two heterozygous parents were crossed what percentage of the offspring would be Homozygous dominant?

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-3