Question

2 what does each chromosome in a living cell contain that holds all the information an organism needs to express its parents traits?
dna
chromatids
homologous alleles
heterozygous alleles

Explanation:

DNA is the molecule that contains the genetic instructions for the development and function of living organisms. Chromosomes in living cells carry DNA which holds all the information for expressing traits. Chromatids are part - of a replicated chromosome. Homologous and heterozygous alleles are related to gene variants, not the main information - carrying molecule in chromosomes.

Answer:

A. DNA