Answer :
Final answer:
The correct symbol that represents a person who has a homozygous genotype is b. WW, as homozygous genotypes contain two identical alleles.
Explanation:
The question asks "Which of the following symbols correctly represents a person who has a homozygous genotype?" with the given options being a.Ww b. WW c. XY d.Wx. In genetics, a genotype is said to be homozygous if it contains two copies of the same gene variant (or allele). Therefore, the symbol that correctly represents a person who has a homozygous genotype is b. WW.
The term homozygous comes from the Greek word 'Homoios', which means the same, and 'Zygote', which means joined or yoked together. For example, if we look at sex determination in mammals, the presence of XX signifies a homozygous condition in females, whereas XY represents a heterozygous condition in males. On the other hand, in birds, ZZ is a homozygous condition in males while ZW is a heterozygous condition in females.
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