Question

identify heterozygous alleles on homologous chromosomes
if the letter \h\ stands for brown hair color, indicate which alleles are homozygous and which are heterozygous.
hh
hh
hh

Explanation:

• Homozygous: An organism has two identical alleles for a particular gene. For the gene related to hair - color here, when the alleles are \(HH\) (two dominant alleles) or \(hh\) (two recessive alleles), they are homozygous.
• Heterozygous: An organism has two different alleles for a particular gene. In this case, \(Hh\) (one dominant and one recessive allele) is heterozygous.

Answer:

• Homozygous: \(HH\), \(hh\)
• Heterozygous: \(Hh\)