Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

What are DNA, chromosomes, and the genome?

April 26, 2017chromosomes dna genome

0

Posted

What are DNA, chromosomes, and the genome?

1 Answer

0

Posted

Deoxyribonucleic acid (DNA) is the molecule that encodes genetic information. Its structure resembles a twisted ladder known as a double helix, with the rungs of the ladder containing the DNA code. The code is written using four units known as bases: Adenine (A), Guanine (G), Cytosine (C) and Thymine (T), the order of these bases in DNA specifying the instructions to build a human being. Human DNA (our genome) is 3,000,000,000 bases long, which would measure about a metre in length if stretched out. It is compacted within our cells into separate structures known as chromosomes. Humans have 46 chromosomes.