That's because sex — and gender roles, too —permeates all the way down to the most unreproductive of cell types. If you want ...

Each human cell contains 23 pairs of chromosomes that ... this is especially true if the child is male, since his only X chromosome will come from his mother. Are sex differences in behavior ...

identical halves of the chromosome created when DNA is copied in preparation for cell division during mitosis. The chromatids, joined at the centromere, are several centimeters long, but compacted by ...

Scientists at the Institute of Cancer Research in London and Linköping University in Sweden have discovered how cells prevent ...

Before cells divide, they replicate the double-stranded DNA of each chromosome. The replication ... the loss of fill-in synthesis activity is the only reason for the telomere abnormalities ...

Before cells divide, they replicate the double-stranded DNA of each chromosome. The replication ... the loss of fill-in synthesis activity is the only reason for the telomere abnormalities ...

This mechanism ensures that genetic material is properly shuffled between chromosomes ... crossover sites exist within a single cell, but only a limited number become actual crossovers.