Biology
- Created by: thayssa gordo
- Created on: 31-01-22 01:18
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DNA exists in a cells nucleus within structures called chromosomes.
Each section of the chromosome contains a code called a gene.
each human body cell contains 46 chromosomes that are arranged into 23 pairs
** - female
XY - male
CELLS DIVIDE WHEN:
- new organism grows
- an organism becomes damaged…
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