Answers A&B are both potentially correct, Homozygous having two alleles for a certain characteristic that are identical. A diploid organism with two different types of alleles is said to be heterozygous.
How do you know if you are homozygous or heterozygous?
- When an organism has two identical copies of the same gene, it is said to be homozygous for that characteristic; when an organism has two different copies of the same gene, it is said to be heterozygous for that trait.
- For instance, you could have homozygosity for the gene that determines eye colour but heterozygosity for the gene that determines hair colour.
- Simply put, this basically implies that you have two distinct hair colour variants and two identical copies of the eye colour variant. Alleles are the many versions or variations of a gene.
- However, the terms heterozygous and homozygous don't just apply to humans or to hair. Genetic inheritance determines whether an individual is heterozygous or homozygous for a given trait in all living things.
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