Whois & Analysis for innerbody.com

Deoxyribonucleic acid (DNA) is a molecule that carries the genetic instructions used in the growth, development, functioning and reproduction of all known living organisms and many viruses.

DNA and RNA are nucleic acids; alongside proteins, lipids and complex carbohydrates (polysaccharides), they are one of the four major types of macromolecules that are essential for all known forms of life.

Most DNA molecules consist of two biopolymer strands coiled around each other to form a double helix.

Heavy metals are generally defined as metals with relatively high densities, atomic weights, or atomic numbers.

The criteria used, and whether metalloids are included, vary depending on the author and context.

In metallurgy, for example, a heavy metal may be defined on the basis of density, whereas in physics the distinguishing criterion might be atomic number, while a chemist would likely be more concerned with chemical behaviour.

More specific definitions have been published, but none of these have been widely accepted.

The definitions surveyed in this article encompass up to 96 out of the 118 chemical elements; only mercury, lead and bismuth meet all of them.

Despite this lack of agreement, the term (plural or singular) is widely used in science.

A density of more than 5 g/cm3 is sometimes quoted as a commonly used criterion and is used in the body of this article.

Sexually transmitted infections (STI), also referred to as sexually transmitted diseases (STD) and venereal diseases (VD), are infections that are commonly spread by sex, especially vaginal intercourse, anal sex or oral sex.

Most STIs initially do not cause symptoms.

This results in a greater risk of passing the disease on to others.

Symptoms and signs of disease may include vaginal discharge, penile discharge, ulcers on or around the genitals, and pelvic pain.

STIs acquired before or during birth may result in poor outcomes for the baby.

Some STIs may cause problems with the ability to get pregnant.