Nonetheless, Mendel and Darwin's work laid the foundation for formulating a testable, research-based theory of heredity. Thus, Flemming recognized that chromosomal movement during mitosis offered ...

Scientific debates can be as passionate and high-profile as political ones. Learn about an epic battle waged between the Castle and Morgan laboratories over the organization of genes. Sturtevant's ...

This video segment from NOVA: "Judgment Day: Intelligent Design on Trial" reveals how genetic evidence helped to confirm an important component of Darwin's theory of evolution by natural selection ...

X chromosomes are expressed differently depending ... are inherited from the mother or the father. The imprinted brain theory developed by Christopher Badcock and Bernard Crespi hypothesizes ...

In collaboration with colleagues from international partner institutions, researchers at the University of Cologne have ...

Female mammals typically carry two X chromosomes — one from each parent — and a new study suggests that the maternal X is linked to faster brain aging.

Why are the human sex chromosomes called “X” and “Y,” while the other 22 chromosomes are identified only by numbers? The answer begins in the late 1800s, when insect gonad cells, whose large ...

When scientists today work to decode the human genome, they use high-tech methods to view the microscopic chromosomes and ... heredity left a big gap in his theory of natural selection.

Macquarie University researchers have worked with an international team of scientists to achieve a major milestone in ...

The findings were published in the journal Nature. The centromere is the thinnest part of the chromosome that divides it into a long and short arm, much like how the waist separates the upper and ...

Each cell with a nucleus contains chromosomes, which are made from DNA Human body cells each contain 23 pairs of chromosomes, half of which are from each parent. So, human gametes (eggs and sperm ...