Science Assessment ~ Topics ~ Reproduction, Genes, and Heredity ~ Item RH036003 ~ Student Performance

Which of the following statements is TRUE about the DNA molecules in the cells of the leaves and the cells of the flowers of the same plant?

The DNA molecules in the cells of the plant’s leaves and in the cells of its flowers are the same.
The DNA molecules in the cells of the plant’s leaves and in the cells of its flowers are different.
There are DNA molecules in the cells of the plant’s leaves, but there are no DNA molecules in the cells of its flowers.
Neither the cells of the plant’s leaves nor the cells of its flowers contain DNA molecules.

Distribution of responses
Answer Choice	Overall	Grades		Gender		Primary Language
	n = 2539	6–8 n = 1558	9–12 n = 978	Male n = 1223	Female n = 1274	English n = 2244	Other n = 224
A.	33%	29%	40%	33%	33%	34%	30%
B.	37%	38%	34%	36%	39%	37%	35%
C.	18%	19%	14%	18%	17%	17%	19%
D.	12%	13%	11%	13%	11%	12%	16%

Science Assessment