Sex Linked

In fruit flies, eye color is a sex linked trait. Red (R) is dominant to white (r). What is the sex and eye color of flies with the following genotype: X ^R X ^r ?

• male with white eyes

• female with red eyes

• male with red eyes

• female with white eyes

Tags

NGSS.HS-LS3-1

In fruit flies, eye color is a sex linked trait. Red (R) is dominant to white (r). What is the sex and eye color of flies with the following genotype: X ^R Y ?

• male with white eyes

• female with white eyes

• male with red eyes

• female with red eyes

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In fruit flies, eye color is a sex linked trait. Red is dominant to white. What is the sex and eye color of flies with the following genotype: X ^R X ^R ?

• male with red eyes

• female with red eyes

• male with white eyes

• female with white eyes

Tags

NGSS.HS-LS3-1

In fruit flies, eye color is a sex linked trait. Red (R) is dominant to white (r). What is the sex and eye color of flies with the following genotype: X ^r Y ?

• male with red eyes

• female with red eyes

• male with white eyes

• female with white eyes

What are the genotypes of these flies:

white eyed, male ?

• X ^R X ^r

• X ^R X ^R

• X^r X ^r

• X ^r Y

• X^R Y

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What are the genotypes of these flies:

white eyed, female ?

• X ^R X ^r

• X ^R X ^R

• X^r X ^r

• X ^r Y

• X ^R Y

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What are the genotypes of these flies:

red eyed female (heterozygous) ?

• X ^R X ^r

• X ^R X ^R

• X^r X ^r

• X ^r Y

• X ^R Y

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What are the genotypes of these flies:

red eyed, male ?

• X ^R X ^r

• X ^R X ^R

• X^r X ^r

• X ^r Y

• X ^R Y

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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-LS3-3

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