ANATOMY

Detailed explanation-1: -Genes are contained in chromosomes, which are in the cell nucleus. A chromosome contains hundreds to thousands of genes.

Detailed explanation-2: -Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).

Detailed explanation-3: -DNA (deoxyribonucleic acid) is the cell’s genetic material, contained in chromosomes within the cell nucleus and mitochondria.

Detailed explanation-4: -Chromosomes are found carrying your DNA in the nucleus of your cells. DNA looks like a spiral staircase (double helix). The rungs are base pairs and the rails are sugar and phosphate molecules.