In particular, it explains that humans have one fewer chromosome pair in their cells than apes, due to a mutation found in chromosome number 2 that caused two chromosomes to fuse into one.

Thus, in her experiments, McClintock observed several fundamental properties of chromosome biology ... hexanucleotide with the sequence 5'-CCCCAA-3' on one strand and 5'-TTGGGG on the ...

Human biological sex is determined by the sex chromosomes X and Y. In most cases, females possess two X chromosomes, while males have one X and one Y. However, there is some evidence that the Y ...

The nucleus of each human body cell contains 46 chromosomes. Each chromosome contains about 1000 genes. There is enough DNA in all the cells in a human body to stretch to the sun and back again ...

The centromeres of human chromosomes are heterochromatic ... thereby contributing to the higher-order structure of the chromosome. Figure 3 shows one model of how CENP-A and CENP-B might interact ...

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 ...