Punnett Square and Genetics Review

For the following genotype, indicate whether it is homozygous dominant, homozygous recessive, or heterozygous : AA

• Homozygous recessive
• Homozygous dominant
• heterozygous
• Heterozygous recessive

For the following genotype, indicate whether it is homozygous dominant, homozygous recessive, or heterozygous: Mm

• Homozygous dominant
• Heterozygous dominant
• Homozygous ressessive
• Heterozygous

For the following genotype, indicate whether it is homozygous dominant, homozygous recessive, or heterozygous: kk

• Heterozygous 
• Homozygous dominant
• Homozygous recessive
• Homozygous

A yellow pea pod is crossed with a green pea pod. Give the phenotype of each offspring.

• 25% green, 50% yellow
• 75% yellow, 25% green
• 50% yellow, 50% green
• 100% green

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A Tt (tall) plant is crossed with a tt (short plant). What percentage of the offspring will be short?

• 100%
• 75%
• 50%
• 25%

Tags

NGSS.HS-LS3-1

A plant species has two alleles for flower color: Red (R) and White (r). The Red (R) allele exhibits complete dominance. Based on the following Punnett Square, what is the probability that an offspring will be heterozygous?
Given your answer to the nearest percentage.

• 100%
• 75%
• 50%
• 25%

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 with the genotype Aa and a father with the genotype Aa produce an offspring. What is the percent chance that the offspring will have NO belly fur?

• 100%
• 75%
• 50%
• 25%

Tags

NGSS.HS-LS3-3

In mussels, brown coloring (B) is dominant, and blue coloring (b) is recessive.A homozygous brown mussel crosses with a blue mussel.What percentage of offspring are expected to be blue?

• 25%
• 75%
• 50%
• 0%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In cats, the allele for short hair (H) is dominant to the allele for long hair (h). A heterozygous short-hair cat is crossed with a long-hair cat. What percentage of the offspring is expected to be heterozygous for hair length?

• 25%
• 50%
• 75%
• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A plant species has two alleles for leaf shape: Curly (C) and flat (c). The Curly (C) allele exhibits incomplete dominance. The intermediate phenotype is wrinkled leaves.
Based on the following Punnett Square, what is the probability that an offspring will be homozygous recessive?
Given your answer to the nearest percentage.

• 50%
• 100%
• 25%
• 0%

Tags

NGSS.HS-LS3-3