if a daughter expresses a sex linked recessive gene, she inherited it from:?

Question

a. her mother
b. her father
c. both parents
d. neither parent

i think its d becuase the genotypes are X and X5.
is this correct? if not, what is the right answer?

Answer 1

both parents. Generally, the sex-linked recessive genes are on the X chromosome. She would have two recessive genes, meaning she had to get a recessive gene from each parent in order to have that phenotype. The above information is incorrect- sex-linked recessive disorders actually occur more often in men than women because men don't have another X chromosome to nullify the recessive gene.

Answer 2

C. Both parents

In order for a recessive gene to show up, the daughter had to have two copies of the gene(one on each X chromosome). That means that the gene had to be present in both parents because she got an X chromosome from both her mother and father.

The gene may not be expressed in the mother as she may have a dominant and recessive gene, but would be expressed in the father because he only has one X chromosome. If this question was about a son, the expressed recessive gene would have come from the mother only because males only have one X chromosome and the Y came from the father.
I hope this helps! I'll check back in case you need more help!

Answer 3

If a daughter expresses a sex linked recessive gene, that means that she is homozygous for that gene. The fact that she is homozygous means that she would have recieved the genes from both parents. (the mother is a carrier and the father expresses the sex linked gene because he has just one X chromosome)

Answer 4

C. both parents since recessive traits do not usually express themselves unless they are pure(gg) This happens with color blind females. MomXX and Dad Xycarry the trait. Dad is color blind because te trait is on the X chromosome and he has nothing to block it on the Y chromosome. Female offspring is X X

Answer 5

c, both parents, if it's recessive both parents must have passed on 1 copy of the recessive gene

Answer 6

both if it's recessive she had to get a bad gene from both parents for it to express it's self.

Answer 7

Since the sex linked recessive trait is expressed she must get it from her mother and boys would not be able to express this gene because it is sex linked.

Answer 8

Female is XX
Male is XY..
so the daughter would be XX... and if she is expressing a sex linked recessive gene, then she definitely got it from her mother, since there is no Y involved.

Answer 9

A daughter receives both sex chromosomes from the mother. So a sex linked trait comes from the mother.

Answer 10

bflute13 is correct, and worded her answer very well. The answer is C.