Mastery Check 3.2.2

A man who has a genotype, Aa, marries a woman with the genotype, AA. What is the probability that their offspring will have the genotype, Aa?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-3

Which pattern of heredity determines human hair color and skin color?

• multiple alleles

• polygenic inheritance

• incomplete dominance

• sex-linked inheritance

In humans, tongue rolling is caused by a dominant autosomal allele. This pedigree shows three generations of a family and their ability to roll their tongues. Which phenotype best describes individual III-7?

• homozygous tongue rolling male

• heterozygous tongue rolling male

• homozygous tongue rolling female

• heterozygous tongue rolling female

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A red flower (RR) and a white flower (R'R') are crossed and produce pink flower offspring (RR'). What is the expected outcome for the offspring that result from the cross between two pink flower plants?

• 0% red, 100% pink, 0% white

• 25% red, 50% pink, 25% white

• 25% red, 25% pink, 50% white

• 50% red, 25% pink, 25% white

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

A mother is heterozygous for blood type A and a father has blood type AB. What is the probability that their offspring would have type A blood?

• 0%

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-3

The karyotype diagram below represents a human female with the genetic disorder known as Turner syndrome. Chromosomal analysis of this karyotype reveals the mutation is a result of

• a missing X chromosome.

• a missing Y chromosome.

• an extra chromosome on chromosome 9.

• a deletion of a section of chromosome 21.

A woman is a carrier for color blindness, a sex–linked trait. If she marries a man who is not color–blind, what is the probability that one of their sons will inherit the trait?

• 0%

• 25%

• 50%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

In skunks, a white stripe down the back is dominant when compared to solid black skunks. If heterozygous striped skunks mated, which percentage of their offspring would be expected to have no stripes?

• 0%

• 25%

• 50%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

When a red bull (RR) is bred with a white cow (WW), a roan calf (RW) with red and white fur is sometimes produced. If a roan bull (RW) is bred with a roan cow (RW), what is the most likely outcome of the offspring?

• 1 red : 1 white : 2 roan

• 0 red : 1 white : 3 roan

• 2 red : 2 white : 0 roan

• 0 red : 0 white : 4 roan

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Shaded individuals in this pedigree express a particular trait. Based on this pedigree, what is the most likely pattern of inheritance of the trait?

• sex-linked dominant

• sex-linked recessive

• autosomal dominant

• autosomal recessive

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2