stem cell can differentiate to form heart muscle cells.
Answer:
Two (2)
Explanation:
If a female is heterozygous for an X-linked allele, such a female can produce <u>two</u> different gametes with respect to the allele.
Being heterozygous means that there are two different alleles representing the gene. <em>The first gamete produced by such female would carry the dominant allele while the other gamete would carry the recessive allele.</em>