Genetics and Punnett Squares Review

Which of the following are GENOTYPES? (select all correct answers)

• black hair

• homozygous dominant

• heterozygous

• blue eyes

• BB

Which of the following are PHENOTYPES?

• green skin

• Aa

• homozygous recessive

• purple eyes

• black fur

The prefix "homo" means

• different

• same

• tomorrow

• never

The prefix "hetero" means

• different

• ugly

• fancy

• same

Which of the following represents alleles for the homozygous dominant genotype?

• Aa

• aa

• AA

Which of the following represents alleles for the homozygous recessive genotype?

• Aa

• aa

• AA

Which of the following represents alleles for the heterozygous genotype?

• Aa

• aa

• AA

If A = red fur and a = white fur, what color fur would Aa be? (Assume Mendelian inheritance)

• red

• white

• purple

• blue

If A = red fur and a = white fur, what are the PHENOTYPIC ratios of the offspring based on the Punnett Square?

• 25% heterozygous

• 50% purple

• 75% red fur and 25% white fur

• 25% homozygous recessive, 50% heterozygous, 25% homozygous dominant

If A = green pods and a = yellow pods, what are the GENOTYPIC RATIOS of the offspring in the Punnett square?

• 100% green pods

• 100% yellow pods

• 100% heterozygous

• 100% homozygous dominant