Genes and chromosomes. can you label these chromosomes with the correct genetic terms?

The right answer are mentionned in the image.

The term allele, from Greek allelos, refers to each of the different possible forms or versions of the same gene, relating to the same character.

A chromosome, from the Greek khroma: color and soma: body, is a filament contained in the nucleus of the cells.

Chromatide is the name given to the two "arms" of a chromosome at the beginning of cell division. The two chromatids of a chromosome are connected by the centromere.