A researcher introduces double-stranded RNA into a culture of mammalian cells and can identify its location or that of its smaller subsections experimentally, using a fluorescent probe. Some time later, she finds that the introduced strand separates into single-stranded RNAs, one of which is degraded. What does this enable the remaining strand to do?
(A) attach to histones in the chromatin
(B) bind to complementary regions of target mRNAs (C) activate other siRNAs in the cell (D) bind to noncomplementary RNA sequences

Question

23-08-2022
Biology

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A researcher introduces double-stranded RNA into a culture of mammalian cells and can identify its location or that of its smaller subsections experimentally, using a fluorescent probe. Some time later, she finds that the introduced strand separates into single-stranded RNAs, one of which is degraded. What does this enable the remaining strand to do?
(A) attach to histones in the chromatin
(B) bind to complementary regions of target mRNAs (C) activate other siRNAs in the cell (D) bind to noncomplementary RNA sequences

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AnnuG AnnuG · Answer 1 · 2022-09-04T11:42:24+02:00

When the double-stranded RNA (like siRNA)separates into single-stranded RNAs, one of which is degraded. This enable the remaining strand to (B) bind to complementary regions of target mRNAs.

RNAs are the Ribonucleic acids. They are formed by the transcription from DNA. RNAs generally are single-stranded, however a few exceptions exist. There are mainly three types of RNAs: m-RNA, t-RNA and r-RNA.

si-RNAs are the short interfering RNAs. They are double-stranded in nature. They are generally used for gene silencing. This is done by binding to the complementary region on the target RNA and thereby preventing the translation into protein.

To know more about RNA, here

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