Pal-Mates … weekend web tip
![](https://www.waterfowl.org.uk/wp-content/uploads/2022/06/6f4e2006-27c7-46b3-827b-88411d7b3ebc.jpg)
Z is for Z chromosome. Birds’ sex chromosomes are Z and W, compared to humans who have X and Y sex chromosomes. The egg determines the sex of the offspring in the former system, whereas the sperm does in the latter. Female birds have one Z chromosome and a shorter W chromosome. Sex-linked genes are […]