RNA primer is composed of which type of nucleotides?

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Multiple Choice

RNA primer is composed of which type of nucleotides?

Explanation:
RNA primers are made of ribonucleotides, the subunits of RNA. Primase lays down a short RNA segment to provide a 3' end for DNA polymerase to extend from, so the primer is composed of RNA nucleotides rather than DNA ones. These ribonucleotides use ribose sugar and include uracil (instead of thymine) in the base pairing. The other options describe deoxyribonucleotides (for DNA) or amino acids (protein building blocks), which do not form the RNA primer.

RNA primers are made of ribonucleotides, the subunits of RNA. Primase lays down a short RNA segment to provide a 3' end for DNA polymerase to extend from, so the primer is composed of RNA nucleotides rather than DNA ones. These ribonucleotides use ribose sugar and include uracil (instead of thymine) in the base pairing. The other options describe deoxyribonucleotides (for DNA) or amino acids (protein building blocks), which do not form the RNA primer.

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