Mendelian Genetics Review

A person with a heterozygous for a disorder caused by recessive alleles is a carrier of the disorder. A carrier is a person who

• does not have the disorder, but can pass it on to offspring

• can develop the disorder later in life, but cannot pass it on

• has a dominant normal allele that has been inactiviated

• passes the disorder to offspring on the Y chromosome only

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Round seeds (R) are dominant over wrinkled seeds (r). What percentage of the offspring will be round from the following cross?
Rr X Rr

• 100%
• 75%
• 50%
• 25%

Tags

NGSS.HS-LS3-3

Round seeds (R) are dominant over wrinkled seeds (r). What percentage of the offspring will be round from the following cross?
RR X Rr

• 100%
• 75%
• 50%
• 25%

Tags

NGSS.HS-LS3-3

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

• 100%
• 75%
• 50%
• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

A homozygous dominant round seeded plant is crossed with a homozygous recessive wrinkled seeded plant. What are the genotypes of the parents?

• RR X rr
• Rr X rr
• rr X rr
• RR X Rr

Tags

NGSS.HS-LS3-1

What gamete possibilities could come from this parent's genotype?

• AB, AB, aB, aB
• Ab, AB, Ab, ab
• Ab, Ab, Ab, Ab
• AB, aB, ab, aB

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What goes in box 3

• Aabb

• AABB

• AAbb

• aaBb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?

• 9/16
• 3/16
• 1/16
• 16/16

Tags

NGSS.HS-LS3-3

NGSS.HS-LS4-3

What proportion of the offspring in Figure 11-4 would be expected to have white, smooth hair?

• 9/16
• 3/16
• 4/16
• 1/16

Tags

NGSS.HS-LS3-3

A white mouse with red eyes is crossed with a black mouse with brown eyes. The white mouse is recessive for both of its traits. The black mouse is dominant for both of its traits.

This cross would be

• BBEE x bbee

• BBEe x BbEe

• BbEE x BbEe

• BBee x BBEE

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3