Monohybrid Practice

A red flower (Rr) is crossed with a white flower (rr). What is the genotypic ratio?

• 0 RR; 0 Rr: 4 rr

• 2 RR; 0 Rr: 2 rr

• 4 RR; 0 Rr: 0 rr

• 0 RR; 2 Rr: 2 rr

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

In sheep, the allele for belly fur (A) is dominant to the allele for no belly fur (a): Two sheep with no belly fur mate and produce offspring. What is the percent chance that the offspring will have belly fur?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-3

In sheep, the allele for belly fur (A) is dominant to the allele for no belly fur (a): A mother that is homozygous dominant for belly fur mates with a heterozygous father. What percent of the offspring will be homozygous dominant for belly fur?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Tall is dominant to short. A homozygous tall plant is crossed with a short plant. What will be the phenotypes of the offspring?

• 100% tall
• 50% tall, 50% short
• 75% tall, 25% short
• 25% tall, 75% short

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3