Nucleic acids allow organisms to transfer genetic information from one generation to the next. There are two types of nucleic acids: deoxyribonucleic acid, better known as DNA and ribonucleic acid, better known as RNA.When a cell divides, its DNA is copied and passed from one cell generation to the next generation. DNA is organized into chromosomes and found within the nucleus of our cells.here are two types of nucleic acids: deoxyribonucleic acid, better known as DNA and ribonucleic acid, better known as RNA. When a cell divides, its DNA is copied and passed from one cell generation to the next generation.
Cramps usually begin one to two years after a woman starts getting her period. Pain usually is felt in the lower abdomen or back. They can be mild to severe. Common menstrual cramps often start shortly before or at the onset of the period and continue one to three days.
Some women never get cramps with their periods, while others experience severe pain and fatigue every month. Cramps are caused by your uterus contracting as it works to shed its lining. Some cramps are normal, especially if you are new to your period. Debilitating cramps that affect your day to day functioning are not. Severe cramps may be a sign of endometriosis, a reproductive health condition that causes painful periods, fatigue, and in some cases infertility.