Sex Linked Traits

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-LS3-2

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

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

NGSS.HS-LS3-2

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

Tags

NGSS.HS-LS3-1

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

In a cross between a pure red eyed female and a white eyed male, what would the genotypes of the parents be?

• X^RX^r with X^R Y

• X^RX^r with X^r Y

• X^RX^R with X^R Y

• X^RX^R with X^r Y

• X^rX^r with X^r Y

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The sex of a child is determined by

• whether the father's sperm contains an x or y chromosome
• whether the mother's egg contains an x or y chromosome
• the age of the parents