T

Transversion

A transversion is a type of change in the genetic code (mutation). Examples are A C and G T.

Transition

A transition is a type of change in the genetic code (mutation). Examples are A G and C T.

Time to the Most Recent Common Ancestor (TMRCA)

The amount of time or number of generations since individuals have shared a common ancestor. Since mutations occur at random, the estimate of the TMRCA is not an exact number (i.e., seven generations) but rather a [...]

Thymine

The "T" of the four bases that make up DNA. The other bases are adenine (A), cytosine (C), and guanine (G). Thymine always pairs with adenine.

Telomere

A telomere is the end of a DNA chromosome. Each of our autosomal and sex chromosomes has two telomeres.