A chromosome is a single, long molecule of DNA. These highly organized structures store genetic information in living organisms. Small sections of the chromosome, called genes, code for the RNA ...

Some chromosomes, such as B chromosomes, can increase their inheritance rate to their own advantage. These extra chromosomes ...

In these species, the X chromosome remains, existing in either a single or double dose in both males and females, per Science ...

This unmatched pair, known as the X and Y sex chromosomes, determines whether we are male (XY) or female (XX). A mother always provides a single X chromosome in her egg. Inherit an X from your ...

To further complicate matters, the tissues studied by Painter were obtained from a single institutionalized individual who was likely to have had constitutional numerical chromosome aberrations.

Autoradiographs reveal that the bacterial chromosome is a single very long DNA molecule and show how it is duplicated When bacterial DNA is labeled with radioactive atoms, it takes its own picture.

Females have two X chromosomes; males have a single X and a male-specific Y. The Y carries a male-determining gene called SRY, which kickstarts the differentiation of a ridge of cells into a testis.

Members of the Jewish priesthood (Cohanim) are an unusual group in that the men of this ancient priestly class can claim descent from a single male ... the Y chromosomes of the Cohanim today ...

Females have two X chromosomes; males have a single X and a male-specific Y. The Y carries a male-determining gene called SRY, which kickstarts the differentiation of a ridge of cells into a testis.

The nucleus of a germline stem cell undergoes two divisions, firstly separating homologous chromosomes and secondly separating chromatids. Haploid gametes contain 23 single chromosomes.