Which allele combination represents a female who is a carrier for an X-linked recessive disorder?
XRXr
XrXr
XRY
XrY

Question

Which allele combination represents a female who is a carrier for an X-linked recessive disorder?
XRXr
XrXr
XRY
XrY

anonymous · Answer

@Abhisar

abhisar · Answer

What do you think?

anonymous · Answer

Probably XRXr ? or XrXr

abhisar · Answer

Carrier means they can pass the disease to their offspring but themselves does not express the disease. It can be possible if the disease is recessive and the individual has heterozygous genotype.

anonymous · Answer

XrY?

abhisar · Answer

$\color{blue}{\text{Originally Posted by}}$ @nacinorenzo
XrY?
$\color{blue}{\text{End of Quote}}$

That will be a male and not female.

anonymous · Answer

Because, homo is XH and Hetero is Xh

abhisar · Answer

Homo means same genotype i.e either $\sf X^HX^H$ or $\sf X^hX^h$

abhisar · Answer

Hetero means different alleles i.e $\sf X^HX^h$

anonymous · Answer

So your point is XRXr?

abhisar · Answer

Yes.

abhisar · Answer

$\sf X^RX^R$ --> Neither carrier nor diseased.

$\sf X^RX^r$ --> Carrier but not diseased.

$\sf X^rX^r$ --> Diseased.

anonymous · Answer

Ohh Right, THANKS SIR :)) You helped me ALOT!

abhisar · Answer

Welcome.

inowalst · Answer

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