Each human body cell contains 46 chromosomes. These can be arranged into 23 pairs. Each chromosome in a pair carries the same types of genes. The 23rd pair are the sex chromosomes: In females ...

The very nature of these experiments meant that it was rare for all chromosomes in a given nucleus to be visualized simultaneously. As a result, reconstruction of intact nuclei was necessary ...

This half of the screen illustrates mitosis—the division of a cell's nucleus. Along with cytokinesis ... of a human being is contained within 46 chromosomes, only half of this number exists ...

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 ...

The nucleus acts as the cell's control center ... The human genome is comprised of two sets of 23 chromosomes -- 46 chromosomes in all. Each parent contributes a set. About 97 percent of the ...

Levett Ibbetson is credited with pioneering the use of limelight in photography. An oxyhydrogen flame (a mixture of oxygen ...

(B) Same spread after multicolor FISH with pseudocolored chromosomes. (C) Probes were detected using antibodies. (D) Mid-plane light optical section through a chicken fibroblast nucleus shows ...

The secret to cellular youth may depend on keeping the nucleolus—a condensed structure inside the nucleus of a cell—small, ...

The researchers then modified the skin cell’s nucleus to reduce its chromosomes by half, so that it could then be fertilized by a sperm cell to create a viable embryo. Biologist Dr. Shoukhrat ...

which identify chromatin interactions in the cell nucleus during interphase, a stage in the cell cycle when a cell is not ...

New research finds that turtle genomes show a chromatin arrangement that hasn't been observed in other organisms.

A study described the three-dimensional architecture of turtle genomes, which fold in a configuration unlike any other animal observed so far.