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Using “T” to represent a dominant allele (version) of a gene and “t” for the recessive allele:

Which of the below combinations is homozygous dominant?
Which of the below combinations is homozygous recessive?
Which of the below combinations is heterozygous

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Answered by GPT-4o mini
To classify the combinations of alleles:

1. **Homozygous Dominant**: This means that both alleles are the same and both are dominant. The combination would be **TT**.

2. **Homozygous Recessive**: This means that both alleles are the same and both are recessive. The combination would be **tt**.

3. **Heterozygous**: This means that the two alleles are different, with one being dominant and the other recessive. The combination would be **Tt**.

In summary:
- Homozygous Dominant: **TT**
- Homozygous Recessive: **tt**
- Heterozygous: **Tt**

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