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Numbers in Anatomy and Physiology 1

1. Numberof DNA molecules in a normal body cell.
2. Number of DNA molecules in a sperm cell.
3. Number of different amino acids inhumans.
4. Number of chromosomes in a normal body cell.
5. Number of days without food... before trouble. (generalization!)
6. Number of minutes without oxygen... beforetrouble. (generalization!)
7. Number of days without water... before bigtrouble.
8. Number of different proteins in humans.
9. Number of genes in one set of DNA molecules.
10. Number of DNA bases that code for one aminoacid in the process of protein synthesis.

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Note

There has been a change due to findings related to the Human Genome Project. It use to be thought that there were between 50,000-100,000 genes in the human genome. The number has been revised to around 30,000.

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