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In standard cellular RNA, how many different nitrogenous bases are used?
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7. DNA and Chromosome Structure
RNA
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In most cells, the RNA molecule is typically made up of how many strands?
A
Three strands
B
One strand
C
Two strands
D
Four strands
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Recall the basic structure of RNA molecules: RNA (ribonucleic acid) is generally single-stranded, unlike DNA which is double-stranded.
Understand that the single strand of RNA is composed of a sequence of nucleotides linked together, allowing it to fold into complex three-dimensional shapes.
Recognize that the question asks about the number of strands in a typical RNA molecule inside most cells, which is usually one continuous strand.
Eliminate options that suggest multiple strands (two, three, or four) because these do not represent the typical structure of RNA molecules.
Conclude that the correct answer is that RNA molecules are typically made up of one strand.
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