THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Single strand
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Double strand
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Triple strand
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Detailed explanation-1: -Single-stranded RNA (ssRNA) is the simplest form of genetic molecule and constitutes the genome in some viruses and presumably in primitive life-forms. However, an innate and unsolved problem regarding the ssRNA genome is formation of inactive double-stranded RNA (dsRNA) during replication.
Detailed explanation-2: -Although RNA is a single-stranded molecule, researchers soon discovered that it can form double-stranded structures, which are important to its function.
Detailed explanation-3: -There are two reasons why RNA is generally single-stranded: RNAses are extremely abundant in most cells. Usually, double-stranded RNA is associated with a viral infection and is destroyed rapidly. Double-stranded RNA is not as stable as double-stranded DNA.
Detailed explanation-4: -DNA is generally double-stranded and RNA is generally single-stranded (though both can exist in either form). Prokaryotes contain both DNA and RNA.
Detailed explanation-5: -RNA is single-stranded. RNA has a backbone of phosphate and ribose sugar. The four nitrogen bases found in RNA are adenine, uracil, cytosine, and guanine are found attached to each sugar.