| 1 |
If the condon consisted of only two nucleotides, there would be how many possible condons? |
- A. 4
- B. 8
- C. <sub>20</sub>
- D. 16
|
| 2 |
Archaebacteria tolerate temperatures up to |
- A. 10<sup>o</sup>C
- B. 40<sup>o</sup>C
- C. 67<sup>o</sup>C
- D. 120<sup>o</sup>C
|
| 3 |
If the amount of adenine in DNA of a bacterial cell is 36% of the total nitrogenous bases, what will be the amount of guanone in the DNA of a cell in next generations: |
- A. 14 %
- B. 28 %
- C. 36 %
- D. 64 %
|
| 4 |
Hardy Weinberg's theorem describes the frequencies of genotype of non evolving. |
- A. Family
- B. Population
- C. Species
- D. Community
|
| 5 |
In Meselson ansd stahl experiment, the DNA from sample at 20 minutes, after centrifugatioon it made sediments at the : |
- A. Top
- B. Bottom
- C. Intermediate
- D. Top & intermediate
|
| 6 |
Gene pool consists of all alleles at all gene loci in all individuals of the |
- A. Family
- B. Clan
- C. Population
- D. Community
|
| 7 |
Which one of the fllowing acts as a stop codon? |
- A. UGG
- B. UGC
- C. UAG
- D. UGU
|
| 8 |
Some individuals leave behind more progeny than others and teh rate at which they do so is affected by their inherited characteristics. This is called. |
- A. Non random mating
- B. Selection
- C. Migration
- D. Mutation
|
| 9 |
Which one is not a vestigial organ of human being. |
- A. Appendix
- B. coccyx
- C. eye lid
- D. Nictitating membranes
|
| 10 |
The ultimate source of change is. |
- A. Evolution
- B. Mutation
- C. Genetic drift
- D. Migration
|