AP BIOLOGY

Detailed explanation-1: -Autosomes are chromosomes that contain genes for characteristics that are unrelated to sex. These chromosomes are the same in males and females.

Detailed explanation-2: -Autosomes still contain sexual determination genes even though they are not sex chromosomes. For example, the SRY gene on the Y chromosome encodes the transcription factor TDF and is vital for male sex determination during development.

Detailed explanation-3: -Definition. All chromosomes except the sex chromosomes are referred to as autosomes. They exist in pairs in the somatic cells whereas singly in the gametic cells.

Detailed explanation-4: -Autosomes differ from sex chromosomes, which make up the 23rd pair of chromosomes in all normal human cells and come in two forms, called X and Y. Autosomes control the inheritance of all an organism’s characteristics except the sex-linked ones, which are controlled by the sex chromosomes.

Detailed explanation-5: -Definition. An autosome is one of the numbered chromosomes, as opposed to the sex chromosomes. Humans have 22 pairs of autosomes and one pair of sex chromosomes (XX or XY). Autosomes are numbered roughly in relation to their sizes.