PATHOLOGY MCQ
GENETICS AND DISEASE
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
What is the genotype of a female that shows the phenotype of an X linked recessive trait?
|
XX
|
|
XRXr
|
|
XRXR
|
|
XrXr
|
Explanation:
Detailed explanation-1: -Examples of X-linked recessive conditions include red-green color blindness and hemophilia A: Red-green color blindness. Red-green color blindness simply means that a person cannot distinguish shades of red and green (usually blue-green).
Detailed explanation-2: -Patterns of inheritance Second, X-linked recessive traits are more commonly expressed in males than females. This is due to the fact that males possess only a single X chromosome, and therefore require only one mutated X in order to be affected.
There is 1 question to complete.