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.
Menstrual cramps and relief. Menstrual cramps are a common type of pain during periods and may be called dysmenorrhoea by doctors. Cramps are usually first experienced a year or two after starting having periods - starting menstruation. The pain can be mild or severe - and is usually felt in the lower abdomen or back. The cramping often begins just before or at the start of the period.