Genetics: Punnett Squares

Which of the following allele pairs is heterozygous?

• RR

• Qq

• ss

Which of the following allele pairs is homozygous?

• Ee

• BB

• Tt

Which of the following allele pairs is homozygous recessive?

• RR

• Rr

• rr

Which of the following allele pairs is heterozygous dominant?

• Ff

• ff

• FF

If the dominant trait is having freckles (F) and the recessive trait is no freckles (f), which allele combination(s) below would represent a person who has freckles? (select all that apply)

• FF

• Ff

• ff

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Look at the punnett square shown. What allele pair would replace the "?"

• WW

• Ww

• ww

Look at the punnett square shown. What is the probability that the offspring will show the dominant trait?

• 100%

• 75%

• 50%

• 25%

• 0%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS4-3

Look at the punnett square. What is the probability of the offspring showing the recessive trait?

• 100%

• 75%

• 50%

• 25%

• 0%

Tags

NGSS.HS-LS4-3

Look at the punnett square. What is the probability that the offspring's alleles will be homozygous dominant?

• 100%

• 75%

• 50%

• 25%

• 0%

Tags

NGSS.HS-LS4-3

Look at the punnett square. What is the probability that the offspring would have homozygous alleles for the trait?

• 100%

• 75%

• 50%

• 25%

• 0%

Tags

NGSS.HS-LS4-3