Free Printable 2. Amoeba Sisters Monohybrid Crosses

1.

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?

a)

HH

b)

Hh

c)

hh

d)

None of the above

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?

a)

HH

b)

Hh

c)

hh

d)

None of the above

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 genotypic ratio of this cross?

a)

1HH: 2Hh: 1hh

b)

1HH: 1Hh: 2hh

c)

2Hh: 2hh

d)

2HH: 2Hh

4.

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?

a)

0%

b)

25%

c)

50%

d)

100%

5.

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?

a)

3 Hairy: 1 No hair

b)

1 Hairy: 3 No hair

c)

2 Hairy: 2 No hair

d)

4 Hairy

6.

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?

a)

0%

b)

25%

c)

50%

d)

100%

2. Amoeba Sisters Monohybrid Crosses

Total questions: 6

Worksheet time: 3mins

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