Answer:
The two strands are held together by hydrogen bonds between the bases, with adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.
Explanation:
Musceles cell is the example of effector.
An atom with an equal number of electrons and protons has no <u>charge</u><u>.</u>
The right option is d. Perimenopause
Perimenopause is the transition
phase between regular menstrual periods and no periods at all. It takes place
over several years in advance of the menopause. Perimenopause generally starts
for women in their mid-40s and it can start even earlier. Symptoms of Perimenopause include fatigue, breast
tenderness, irregular periods and mood swings.
