2. Amoeba Sisters Monohybrid Crosses

Two guinea pigs mate. H represents the allele for hair, and h represents the allele for hairless. The male guinea pig has a heterozygous genotype. The female guinea pig has a recessive genotype. What is the mother’s genotype?

• HH

• Hh

• hh

• None of the above

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Two guinea pigs mate. H represents the allele for hair, and h represents the allele for hairless. The male guinea pig has a heterozygous genotype. The female guinea pig has a recessive genotype. What is the father’s genotype?

• HH

• Hh

• hh

• None of the above

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Two guinea pigs mate. H represents the allele for hair, and h represents the allele for hairless. The male guinea pig has a heterozygous genotype. The female guinea pig has a recessive genotype. What is the genotypic ratio of this cross?

• 1HH: 2Hh: 1hh

• 1HH: 1Hh: 2hh

• 2Hh: 2hh

• 2HH: 2Hh

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Two guinea pigs mate. H represents the allele for hair, and h represents the allele for hairless. The male guinea pig has a heterozygous genotype. The female guinea pig has a recessive genotype. What are their chances of having heterozygous offspring?

• 0%

• 25%

• 50%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Two guinea pigs mate. H represents the allele for hair, and h represents the allele for hairless. The male guinea pig has a heterozygous genotype. The female guinea pig has a recessive genotype. What is the phenotypic ratio of this cross?

• 3 Hairy: 1 No hair

• 1 Hairy: 3 No hair

• 2 Hairy: 2 No hair

• 4 Hairy

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Two guinea pigs mate. H represents the allele for hair, and h represents the allele for hairless. The male guinea pig has a heterozygous genotype. The female guinea pig has a recessive genotype. What are their chances of having a hairless offspring?

• 0%

• 25%

• 50%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2