Answer: Option 4.
Autosomes are homologous chromosomes that are alike.
Step-by-step explanation:
Autosomes are homologous chromosomes that have the same morphology. They are chromosomes aside from sex chromosomes. They contain sexual determination genes despite they are not sex chromosomes. These chromosomes are labelled from 1- 22 in the human body base on their sizes. In Human, they are 44 in number and they have the same shape and length.
Human autosomes can be identified by extracting chromosomes from the cell at metaphase or prometaphase stage as stained with gimesa dye.