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- Y chromosome
- ...Y chromosome is the male sex chromosome, shaped like a Y and containing a number of genes that impact men's fertility.
- ...y rod-shaped pieces in the nucleus of a cell that hold the DNA code needed to build a human. Most human cells have 46 chromosomes including 22 pairs of autosomes and the X and Y sex chromosomes. Sperm...
- Sperm cell
- ...chromosomes (either an X or Y sex chromosome and 22 autosomes). The sperm cell has a tail, which helps it swim through the woman's reproductive system to meet an oocyte. The sperm has an oval head...