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Self Tests

BioChemistry Numbers 1

1. Number of DNA molecules in a normal body cell..
2. Number of DNA molecules in a sperm cell. .
3. Number of different amino acids in humans.
4. Number of chromosomes in a normal body cell. (Somatic cell)
5. Number of days without food... before trouble. (generalization!)
6. Number of minutes without oxygen... before trouble. (generalization!)
7. Number of days without water... before big trouble.
8. Number of different proteins in humans. (Best estimate. Good info here.)
9. Number of genes in one set of DNA molecules. (Note: the old rule of "one gene - one protein" is used here. However, many biochemists now say there are up to a million different proteins in humans.)
10. Number of DNA bases that code for one amino acid in the process of protein synthesis.


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