In prokaryotes, the circular chromosome is contained in the cytoplasm in an area called the nucleoid. In contrast, in eukaryotes, all of the cell's chromosomes are stored inside a structure called ...

This illustration shows the structure of a chromosome, highlighting how DNA is tightly packed around disc-shaped proteins to form the characteristic X-shaped figure seen during cell division. (Image: ...

Although the DNA code from cell to cell is the same ... coiling of chromatin (the thick line in this illustration). This coiling causes the chromosome to resemble a spring. Chromatin refers ...

Thus, in her experiments, McClintock observed several fundamental properties of chromosome biology; specifically, she noticed that cells do not tolerate the presence of unprotected chromosome ends ...

These chromosomes are present in every cell of the body — not just in the reproductive organs. As a result, every cell carries an intrinsic sexual identity, a concept I refer to as cellular sex ...