Monohybrids and the Punnett Square

What is the genotype of a hairless guinea pig?

• HH

• Hh

• hh

• H

What does a recessive allele represent?

• A trait that will always show up

• A trait that will not usually show up

• A dominant gene

• A heterozygous genotype

What is the genotype of a guinea pig with hair?

• HH

• Hh

• hh

• H

What does the term 'homozygous' mean?

• Having the same genotype

• Having different genotypes

• Having a dominant allele

• Having a recessive allele

How many squares are there in a Punnett square for a monohybrid cross?

• 2

• 3

• 4

• 5

What is the genotype ratio of the offspring in a monohybrid cross between two heterozygous guinea pigs?

• 1HH: 2 Hh: 1 hh

• 1HH: 1 Hh: 1 hh

• 2HH: 1 Hh: 1 hh

• 2HH: 2 Hh: 1 hh

What is the phenotype of a guinea pig with the genotype Hh?

• Hairless

• Has hair

• Cannot be determined

• Depends on the other parent's genotype

Tags

NGSS.HS-LS3-1

What does the term 'phenotype' refer to?

• The genetic makeup of an organism

• The physical traits of an organism

• The probability of a trait showing up

• The dominance of an allele

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

What is the probability of a hairless guinea pig in a monohybrid cross between two heterozygous guinea pigs?

• 0%

• 25%

• 50%

• 75%

What is a characteristic of Punnett squares?

• They are predictions

• They always give accurate results

• They determine the genotype of an organism

• They are used for monohybrid crosses only