Genetics Warm Up

Consider a gene that codes for a trait (such as hair color). That gene can have different forms which, in this example, could result in different hair colors depending on which forms are inherited.

A form of a gene is defined as a(an):

• phenotype

• allele

• DNA

• chromosome

Tags

NGSS.HS-LS3-1

Consider a guinea pig with Hh genotype. To have genotype Hh, it received _____ allele(s) from one of its parents and _____ allele(s) from the other parent.

• 2, 2

• 1, 2

• 1, 1

• 2, 0

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In Mendelian genetics, _____ alleles are only expressed if a _____ allele is not present.

• dominant, recessive

• recessive, dominant

Which of these would be considered a heterozygous genotype?

• HH

• hh

• Hh

Which of these would be considered a homozygous genotype?

• HH

• hh

• Hh

What is the phenotype of this guinea pig?

• Hairy

• Hairless

• HH

• Hh

• hh

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2