1. DNA is the master molecule of the cell and carries all of the cell's genetic information in its sequence of nucleotides.

2. DNA is a double-stranded helical molecule with a backbone composed of covalently bonded sugar and phosphate groups. The purine and pyrimidine bases extend into the center of the helix. (Figure 2.25a)

3. The two strands of DNA are complementary and are held together by hydrogen bonds between the bases.

(Figure 2.25b)

Bacterial Vaginosis Facts

Bacterial Vaginosis Facts

This fact sheet is designed to provide you with information on Bacterial Vaginosis. Bacterial vaginosis is an abnormal vaginal condition that is characterized by vaginal discharge and results from an overgrowth of atypical bacteria in the vagina.

Get My Free Ebook

Post a comment