Ans. A) Chromosomes contain pieces of information for traits, called genes.
Genes can be defined as segments of DNA (deoxyribonucleic acid) that codes for a specific product (either protein or RNA). Chromosomes represent thread-like structures, which are made up of protein and DNA, found in nuclei of eukaryotic organisms.
Chromosomes carry genetic information for several traits in the form of genes, means genes are present in chromosomes. For example, human chromosome 1 contains a total of 1961 genes.
Thus, the correct answer is option (A).
