Sex-linked genetics

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

What percentage of the female offspring will be a carrier for this recessive disease?

• 0%
• 50%
• 100%
• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

I have 2 X chromosomes. What am I?

• Male
• Female

Tags

NGSS.HS-LS3-1

I have 1 X chromosome and 1 Y chromosome. What am I?

• Male
• Female

If this couple has a child, what are the odds that a SON will be colorblind (hint: has a little "c")?

• 50%
• 25%
• 100%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Hemophilia is a recessive x-linked disorder.

Which genotype represents a female who has 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 female who does not have hemophilia and is not a carrier?

• X^HX^h

• X^hX^h

• X^HX^H

• X^hY

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Hemophilia is a recessive x-linked disorder.

Which genotype represents a male without hemophilia?

• X^HX^h

• X^hX^h

• X^HY

• X^hY

Tags

NGSS.HS-LS3-1

Colorblindness is a recessive sex-linked genetic disorder. What is the chance of a having a female with colorblindness when you cross a colorblind male with a carrier female?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3