OBJECTIVE LIFE SCIENCE
GENETICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
In fruit flies eye color is carried on the X chromosome. RED (R) is dominant to WHITE (r). What is the sex and color of the following:XrY
|
|
female red
|
|
|
female white
|
|
|
male red
|
|
|
male white
|
Explanation:
Detailed explanation-1: -Answer and Explanation: 1) An XX sex chromosome pair results in female and XY chromosome pair results in male. R is dominant over r, resulting in red eyes.
Detailed explanation-2: -In fruit flies, red eyes are dominant over sepia (brownish) eyes.
Detailed explanation-3: -The eye color gene is located on the X chromosome (one of the sex determining chromosomes of Drosophila). White eye color is recessive. When a red eyed male mates with white eyed females, their daughters will have red eyes, but their sons will have white eyes.
There is 1 question to complete.