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Which of the following statements best describes the structure of RNA molecules in general?
a. RNA molecules form a double helix modeled after the DNA from which they are encoded.
b. RNA molecules are single stranded but they commonly form localized secondary structures by forming covalent bonds between regions of the molecule.
c. RNA molecules are single stranded and they do not commonly form localized secondary structures.
d. RNA molecules are single stranded but they commonly form localized secondary structures by base pairing between regions of the molecule.

Sagot :

RNA molecules are single-stranded but they commonly form localized secondary structures by base pairing between regions of the molecule.

RNA is normally a biopolymer with a single strand. The ribonucleotide chain is folded into complex structural forms with bulges and helices as a result of intrachain base-pairing and the presence of self-complementary sequences in the RNA strand.

As a result of the ribose sugar and nitrogenous bases' ability to be modified in a variety of ways by cellular enzymes that attach chemical groups (such as methyl groups) to the chain, the three-dimensional structure of RNA is essential to its stability and function.

To learn more about RNA, visit the link below:

brainly.com/question/4078581

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