Multiple choice

Double trisomes have a genomic constitution of

  1. 2n + 2

  2. 2n + 1 + 1

  3. 2n + 1

  4. 2n - 2

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A double trisome involves two different chromosomes, each present in three copies instead of the normal two copies. This is represented as 2n + 1 + 1, indicating an extra copy of two different chromosomes. A simple trisome would be 2n + 1.