Chromosomes (shown in red) consist of both DNA and Protein. The DNA carries the hereditary information of the cell and contains a linear array of many genes. The human genome contains 3.2 x109 DNA nucleotide pairs, divided between 22 different autosomes and 2 sex chromosomes.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s