Evolution
Evolution and Natural Selection
Genetic variation results from mutations and allele shuffling during reproduction, which leads to variation in p…
Item EH006001: Some mutations are harmful, some mutations are beneficial, and some have no effect on the organism.
What effect do mutations have on organisms?
- All mutations are harmful to organisms because they disrupt protein function or gene regulation.
- All mutations are beneficial to organisms, because they improve protein function or gene regulation.
- All mutations have no effect on organisms, because they do not significantly affect protein function or gene regulation.
- Some mutations are harmful, some mutations are beneficial, and some have no effect on the organism.
Pre-Test
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 559 |
6–8 n = 23 |
9–12 n = 499 |
Male n = 221 |
Female n = 300 |
English n = 516 |
Other n = 13 |
||
| A. | All mutations are harmful to organisms because they disrupt protein function or gene regulation. | 6% | 4% | 6% | 5% | 7% | 6% | 8% |
| B. | All mutations are beneficial to organisms, because they improve protein function or gene regulation. | 7% | 4% | 7% | 7% | 6% | 7% | 8% |
| C. | All mutations have no effect on organisms, because they do not significantly affect protein function or gene regulation. | 6% | 13% | 6% | 6% | 7% | 7% | 0% |
| D. | Some mutations are harmful, some mutations are beneficial, and some have no effect on the organism. | 81% | 78% | 81% | 81% | 81% | 81% | 85% |
Post-Test (Control)
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 281 |
6–8 n = 18 |
9–12 n = 229 |
Male n = 109 |
Female n = 135 |
English n = 243 |
Other n = 9 |
||
| A. | All mutations are harmful to organisms because they disrupt protein function or gene regulation. | 8% | 0% | 8% | 6% | 7% | 7% | 0% |
| B. | All mutations are beneficial to organisms, because they improve protein function or gene regulation. | 8% | 17% | 7% | 6% | 8% | 7% | 11% |
| C. | All mutations have no effect on organisms, because they do not significantly affect protein function or gene regulation. | 5% | 6% | 5% | 7% | 3% | 5% | 11% |
| D. | Some mutations are harmful, some mutations are beneficial, and some have no effect on the organism. | 79% | 78% | 80% | 81% | 81% | 81% | 78% |
Post-Test (Treatment)
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 305 |
6–8 n = 3 |
9–12 n = 280 |
Male n = 139 |
Female n = 150 |
English n = 276 |
Other n = 8 |
||
| A. | All mutations are harmful to organisms because they disrupt protein function or gene regulation. | 2% | 0% | 2% | 2% | 1% | 2% | 0% |
| B. | All mutations are beneficial to organisms, because they improve protein function or gene regulation. | 5% | 0% | 5% | 3% | 7% | 5% | 0% |
| C. | All mutations have no effect on organisms, because they do not significantly affect protein function or gene regulation. | 3% | 0% | 3% | 5% | 2% | 4% | 0% |
| D. | Some mutations are harmful, some mutations are beneficial, and some have no effect on the organism. | 90% | 100% | 90% | 90% | 90% | 89% | 100% |