Question

In RNA, uracil is present instead of thymine (in DNA)?
A) True
B) False

Answer 1

True, RNA contains the base uracil in place of thymine, which is found in DNA, and it is single-stranded with ribose sugar.

Step-by-step explanation:

The question 'In RNA, uracil is present instead of thymine (in DNA)?' can be answered as True. In the structure of RNA, the nitrogenous base uracil replaces thymine, which is found in DNA. \

While adenine, guanine, and cytosine are bases common to both RNA and DNA, uracil is unique to RNA and pairs with adenine, just as thymine does in DNA. Moreover, RNA features the sugar ribose instead of deoxyribose, which is present in DNA, and RNA is typically a single-stranded molecule, unlike the double helix structure of DNA.