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at least one dominant allele:

The answer above ^ is WRONG: The notation TT means that the chromosomes that carry alleles for a certain characteristics both have a dominant gene,which means TT is a two dominant alleles because each T is one dominant allele. SHORTER IS: 2 DOMINANT ALLELES.

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Wiki User

12y ago
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Wiki User

14y ago

Tt usually is the genes for height or being tall that an organism has. A high case T is dominant and a lower case t is ressesive. In genetics, any letter that is capitalized is always dominant and a letter that is lower case is always ressesive

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Wiki User

15y ago

"Tt" would mean that x organism was heterozygous for a dominant allele ("T") on x locus.

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Leini May Buno

Lvl 1
2y ago
two dominant allelles

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Wiki User

9y ago

tt in genetics is representing a trait that is homozygous recessive. This is shown through the lower case t's and them both being the same.

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Wiki User

8y ago

Tt to a geneticist indicates a heterozygous genotype.

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Anonymous

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4y ago

SFF

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Q: What does the symbol Tt mean to a geneticist?
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