What does the notation tt mean to geneticists?

Understand the Problem

The question is asking about the significance of the notation 'tt' in genetics, which is typically related to the representation of alleles in genetic crosses.

Answer

A homozygous recessive genotype.

The notation 'tt' refers to a homozygous recessive genotype.

Answer for screen readers

The notation 'tt' refers to a homozygous recessive genotype.

More Information

In genetics, 'tt' signifies that the organism has two copies of the recessive allele for a given trait. This contrasts with 'TT' (homozygous dominant) and 'Tt' (heterozygous).

Tips

Do not confuse 'tt' with 'TT' (homozygous dominant) or 'Tt' (heterozygous). Each notation indicates different allele combinations.

Sources

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