Genetics of Hairless Guinea Pigs

What is the primary reason the narrator wanted a hairless guinea pig?

• They do well in the wild

• They are easier to take care of

• Due to their unique genetics

• Because they are easier to find in pet stores

What does a lowercase 'h' represent in the context of guinea pig hair?

• A genotype for multiple traits

• A recessive allele

• A gene for long hair

• A dominant allele

What genotype represents a hairless guinea pig?

• HHh

• hh

• Hh

• HH

What does 'homozygous' mean?

• Having multiple alleles

• Having no alleles

• Having two different alleles

• Having two identical alleles

What does 'heterozygous' mean?

• Having two identical alleles

• Having no alleles

• Having two different alleles

• Having multiple alleles

Why can't you determine a guinea pig's genotype just by looking at it?

• Because the genotype does not affect physical appearance

• Because a guinea pig with hair could be HH or Hh

• Because hair color changes with age

• Because all guinea pigs look the same

What is the result of crossing two heterozygous guinea pigs?

• All offspring will be hairless

• 2 HH and 2 hh

• All offspring will have hair

• 1 HH, 2 Hh, and 1 hh

What percentage of the offspring will have hair in the discussed cross?

• 75%

• 50%

• 25%

• 100%

What does a Punnett square predict?

• The genotype of the parents

• The physical appearance of parents

• The probabilities of different genotypes and phenotypes

• The exact outcome of genetic crosses

Why are Punnett squares considered predictions?

• Because they are based on past events

• Because they show probabilities, not certainties

• Because they can predict the future

• Because they always predict the exact outcome