Obstetrics & gynaecology

Smoking during pregnancy may not cause ADHD in children after all

A new systematic review and meta-analysis published in the scientific journal Addiction and led by University of Bristol researchers shows that maternal prenatal smoking is associated with offspring attention-deficit hyperactivity ...

Genetics

The sex of your cells matters when it comes to heart disease

Most mammals, including humans, have two sex chromosomes, X and Y. One sex chromosome is usually inherited from each parent, and they pair up as either XX or XY in every cell of the body. People with XX chromosomes typically ...

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Offspring

In biology, offspring is the product of reproduction, a new organism produced by one or more parents.

Collective offspring may be known as a brood or progeny in a more general way. This can refer to a set of simultaneous offspring, such as the chicks hatched from one clutch of eggs, or to all the offspring, as with the honeybee.

Human offspring (descendants) are referred to as children (without reference to age, thus one can refer to a parent's "minor children" or "adult children"); male children are sons and female children are daughters. See kinship and descent.

The word "fetus" is derived from the Latin word for "offspring." In humans, the fetal stage begins eight weeks after conception, when all of the major organs have been formed.

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