If a female is heterozygous for an X-linked allele, how many types of gametes can she produce with respect to that allele?

Two (2)

Explanation:

If a female is heterozygous for an X-linked allele, such a female can produce two different gametes with respect to the allele.

Being heterozygous means that there are two different alleles representing the gene. The first gamete produced by such female would carry the dominant allele while the other gamete would carry the recessive allele.

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