Which best describes STRs?Question 20 options:a piece of non-coding DNA consisting of 2–5 repeating sequences of base pairsa piece of non-coding DNA that consists of 9–80 repeating sequences of base pairsa piece of coding DNA consisting of 2–5 repeating sequences of base pairsa piece of coding DNA that consists of 9–80 repeating sequences of base pairs

A piece of non-coding DNA consisting of 2-5 repeating sequences of base pairs

Explanation:

Short Tandem Repeats are the repeated patterns or sequences formed of two or more nucleotides that are found in DNA. These repeated sequences are located adjacent to each other. These are also called micro-satellites and are made up of 2-16 base pairs. These are non-coding intron regions, but are helpful in individual identification because a genetic profile of an individual can be created with the help of STRs.

explanation:

the fossil record extends back to a dog-like ancestor some 55 million years ago, which gave rise to the first horse-like species 55 to 42 million years ago in the genus eohippus.