| 1. | It protects the bacterium from desiccation |
| 2. | It provides means of locomotion |
| 3. | It allows the bacterium to "hide" from the host's immune system. |
| 4. | It allows the bacterium to attach to the surface |
The unequivocal proof of DNA as the genetic material came from the studies on:
| 1. | Bacterial virus | 2. | Bacterium |
| 3. | Fungus | 4. | Viroid |
In the history of biology, the human genome project led to the development of:
1. Biosystematics
2. Biotechnology
3. Biomonitoring
4. Bioinformatics
The 3'-5' phosphodiester linkages inside a polynucleotide chain serve to join:
| 1. | One nucleoside with another nucleoside |
| 2. | One nucleotide with another nucleotide |
| 3. | One nitrogenous base with pentose sugar |
| 4. | One DNA strand with the other DNA strand |
Which one of the following statements about the particular entity is true:
| 1. | The gene for producing insulin is present in every body cell |
| 2. | Nucleosome is formed of nucleotides |
| 3. | DNA consists of a core of eight histones |
| 4. | Centromere is found in animals cells, which produces aster during cell division |