Sex- Linked Inheritance Review

In fruit flies, red eye color (R) is a sex-linked trait that is dominant over white eye color (r).
According to the Punnett square, what percentage of female offspring will have red eyes?

• 0%
• 25%
• 50%
• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Duchenne muscular dystrophy is a recessive x-linked disorder.
According to the Punnett square, what percentage of male offspring will have the disorder?

• 0%
• 25%
• 50%
• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Duchenne muscular dystrophy is a recessive x-linked disorder.
According to the Punnett square, what percentage of offspring will have the disorder?

• 0%
• 25%
• 50%
• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

A haemophilic man marries a normal homozygous woman. What is the probability that their son will be haemophilic?

• 100%

• 75%

• 50%

• 0%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

X linked recessive gene is ___________.

• always expressed in male

• always expressed in female

• lethal

• sub lethal

When a woman, heterozygous for a sex-linked condition, mates with a male who has the condition what percentage of their offspring could have the condition?

• 25%

• 50%

• 75%

• 0%, but all would be carriers.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

When we say that a woman is a carrier for a genetic disease or disorder it means that

• she has 1 recessive allele, but not the disorder

• she has 2 recessive alleles for the disorder

• she has 1 recessive gene and will show the disorder

• she has 2 recessive genes and will not show the disorder

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Allison's father was colorblind. She realizes that she received his defective X-chromosome. However, she is not color blind. She is a what?

• Carrier
• Colorblind female
• Non-carrier
• Incapable of seeing purple

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Hemophilia is a recessive x-linked disorder.
Which genotype represents a female who is a carrier for hemophilia?

• X^HX^h
• X^hX^h
• X^HX^H
• X^hY

Tags

NGSS.HS-LS3-1

Hemophilia is a recessive x-linked disorder.
Which genotype represents a male with hemophilia?

• X^HX^h
• X^hX^h
• X^HY
• X^hY

Tags

NGSS.HS-LS3-1