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.
1 Menstrual cramps are pains felt in the lower abdomen, occurring both before and during a woman's menstrual period. 2  The pain can be slight or sometimes extremely severe. 3  There are two types of painful periods-primary and secondary dysmenorrhea. 4  About 15% of women describe menstrual pain as severe.ast facts on menstrual cramps. Here are some key points about menstrual cramps. More detail and supporting information is in the main article. 1  Menstrual cramps are pains felt in the lower abdomen, occurring both before and during a woman's menstrual period. 2  The pain can be slight or sometimes extremely severe.