Genetics Quick Review

Which is a heterozygous genotype?

• HH

• Hh

• hh

What is the probability that 2 heterozygous parents will have a homozygous recessive offspring?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS4-3

Which is a homozygous recessive genotype?

• HH

• Hh

• hh

Which is a homozygous dominant genotype?

• FF

• ff

• Ff

• Fx

Tags

NGSS.HS-LS3-1

From Image- What % of the offspring will show the dominant phenotype?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Looking at a hamster will give you information regarding....

• the hamster's phenotypes.

• the hamster's genotypes.

• the hamster's heterozygous genotypes.

• the hamster's recessive alleles.

Tags

NGSS.HS-LS3-1

What are the %'s of phenotypes you would expect in any cross between two heterozygous parents?

• 25% dominant phenotype, 75% recessive phenotype

• 50% dominant phenotype, 50% recessive phenotype

• 75% dominant phenotype, 25% recessive phenotype

• 100% dominant

Tags

NGSS.HS-LS3-3

What is the dominant phenotype?

• Black fur only

• White with black spots

• Both are dominant.

• Neither are dominant.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

To guarantee a recessive phenotype in the offspring, both parents genotype must be...

• heterozygous.

• homozygous dominant.

• homozygous recessive.

• 1 heterozygous and 1 homozygous recessive.

Black fur(B)-White fur(b):What % offspring will be hybrid if a white fur mates w/ hybrid black?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3