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What does tt mean in genenitics?

Updated: 9/19/2023
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13y ago

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In the study of genetics, we often refer to things call Alleles. These things can help us work out the chance of a particular person having a particular characteristic.

In genetics we call lower case letters recessive alleles, for example 't'

However, alleles always come in pairs, one from the mother, one from the father so it would be tt.

I don't want to over complicate things but there are also dominant alleles which are shown as upper case letters, so 'T'.

tt is basically the recessive genotype of a particular characteristic.

We call the two alleles together a genotype.

Hope this helps!

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