 |
1 | |
The scientific basis for studying mutant worms exhibiting an egg-laying defective phenotype was that |
| | A) | All worms with this phenotype would have a heterochronic mutation. |
| | B) | Some worms with this phenotype may have a heterochronic mutation. |
| | C) | It affected muscle cells. |
| | D) | It produced a bizarre "bag of worms" phenotype. |
|
|
2 | |
In this experiment, the purpose of microscopy was to |
| | A) | Examine the nuclei for genetic changes |
| | B) | Determine if the worms were viable |
| | C) | Follow particular cell lineages |
| | D) | Determine if additional mutations occurred |
|
|
3 | |
If the lin-14 gene product persists for too long, this causes the worm to have |
| | A) | More cells |
| | B) | Fewer cells |
| | C) | The same number of cells but with different cell fates |
| | D) | None of the above |
|
|
4 | |
In the n536 mutant strain, the lin-14 gene is expressed during |
| | A) | L1 only |
| | B) | L2 only |
| | C) | L1 and L2 |
| | D) | L1, L2, and L3 |
|
|
5 | |
In the n355 mutant strain, the lin14 gene is expressed during |
| | A) | L1 only |
| | B) | L1 and L2 |
| | C) | L1, L2, and L3 |
| | D) | L1, L2, L3, and L4 |
|