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Subject Test Biology

Question 1 of 24

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SAT Subject Test

The first items in the Biology E/M test are arranged in sets with common answer choices. These items appear in the core section of the test. Remember, these are not MATCHING challenges — each answer choice can be used once, more than once, or not at all.

Nitrogenous base that occurs in RNA but not in DNA

Select an Answer

Deoxyribose

Correct Answer: 
No

Ribose

Correct Answer: 
No

Uracil

Correct Answer: 
Yes

Cytosine

Correct Answer: 
No

Thymine

Correct Answer: 
No

The correct answer is Uracil. Uracil is one of the four nitrogenous bases found in RNA. The other three nitrogenous bases in RNA are also found in DNA, but uracil is not found in DNA.

Question Difficulty: 
easy