Monohybrids and the Punnett Square Guinea Pigs

What is the genetic representation for a hairless guinea pig?

• hh

• Hh

• HH

• None of the above

Which allele is dominant for the hair trait in guinea pigs?

• H

• h

• Both h and H

• Neither

What does a heterozygous genotype look like?

• None of the above

• HH

• hh

• Hh

What does homozygous recessive mean?

• Both alleles are dominant

• Both alleles are recessive

• One dominant and one recessive allele

• None of the above

Which genotype represents a homozygous dominant guinea pig?

• hh

• Hh

• HH

• None of the above

What is the result of crossing two heterozygous guinea pigs?

• 1 HH, 1 Hh, 2 hh

• All hh

• 1 HH, 2 Hh, 1 hh

• 2 HH, 1 Hh, 1 hh

What percentage of the offspring will likely have hair from a heterozygous cross?

• 75%

• 100%

• 25%

• 50%

What does the phenotype describe?

• Genetic makeup

• Physical traits

• Probability of traits

• None of the above

What is the phenotype ratio for hair to hairless in the offspring of a heterozygous cross?

• None

• 2:2

• 1:3

• 3:1

What does a Punnett square predict?

• Probable outcomes

• Past genetic traits

• Exact outcomes

• None of the above