sex chromosomes
Identical sex chromosomes could be key to a long life
When 109-year-old Jessie Gallan was asked about the secret to her long life, she replied “staying away from men.” Other ...
Podcast: Sneaky sheep, substandard stallions and sperm wars
Stories of sneaky sheep, substandard racing stallions, and news from the front lines of the sperm wars ...
Podcast: That weird time in history when humans had 24 pairs of chromosomes
Everyone knows that humans have 23 pairs of chromosomes. But if you'd looked at a textbook in the 1940s, the ...