PATHOLOGY

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?
A
XX
B
XRXr
C
XRXR
D
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.