Help! bio homework.

7.

XRY is a male with red eyes

XrXr is a female with white eyes

XRXR is a female with red eyes

XrYis a male with white eyes

8.

red eyed female heterozygous-XRXr

red eyed male-XrY

9.

2 white eyed male

0 white eyed female

0 red eyed male

2 red eyed female

10.

XRXR X XrY

first row XRXr XRY

second row XRXr XRY

0 white eyed male

0-white eyed female

2 red eyed male

2-red eyed female

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.

the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

hope this : )