Original Project
Reproduction, Genes, and Heredity
DNA molecules provide the cells with instructions for assembling protein molecules from amino acids.
Item RH048001: 100% of a son's body cells contain some DNA from his mother.
In sexually reproducing organisms, such as humans, which of the following is TRUE about how many of a son’s body cells (any cell in the body except a sex cell) contain DNA from his mother?
- A little less than 50% of a son’s body cells contain some DNA from his mother.
- 50% of a son’s body cells contain some DNA from his mother.
- A little more than 50% of a son’s body cells contain some DNA from his mother.
- 100% of a son’s body cells contain some DNA from his mother.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
|||
|---|---|---|---|---|---|---|---|
| n = 1443 |
6–8 n = 962 |
9–12 n = 481 |
Male n = 684 |
Female n = 734 |
English n = 1245 |
Other n = 159 |
|
| A. | 22% | 26% | 14% | 23% | 20% | 22% | 19% |
| B. | 47% | 45% | 50% | 45% | 50% | 47% | 45% |
| C. | 16% | 17% | 14% | 17% | 15% | 15% | 21% |
| D. | 15% | 12% | 22% | 15% | 15% | 16% | 15% |