Glossary - X |
A | B | C | D | E | F | G | H | I | J | K | L | M
N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
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| X Chromosome |
| What it's not: |
One of the few things men and women have in common. |
| What it is: |
One of the two sex chromosomes. Women generally have two X chromosomes whereas men have one X chromosome and one Y chromosome. |
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