An organism with two identical alleles of a gene in a cell is called
A
Homozygous
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B
Dominant
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C
Heterozygous
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D
Recessive
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Solution
The correct option is A Homozygous If an organism has two copies of the same allele, for example, AA or aa, it is homozygous for that trait. If the organism has one copy of two different alleles, for example, Aa, it is a heterozygous.