In DNA replication, the primer
Correct answer: D. Is a short segment of RNA nucleotides
- A. Consists of few DNA nucleotides
- B. Helps lo unwind DNA double strand
- C. Prevents DNA strands to pair up
- D. Is a short segment of RNA nucleotides
Explanation
DNA polymerase - an enzyme that adds new nucleotides to a growing strand of DNA. Primers - A primer is a short strand of RNA nucleotides that will bind to the 3' end of the template DNA strand allowing DNA polymerase to add free DNA nucleotides.
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About Structure of DNA
DNA structure includes nucleotides made of deoxyribose, phosphate and nitrogenous bases, arranged in two antiparallel polynucleotide strands. Questions cover the double helix, phosphodiester and hydrogen bonds, complementary base pairing between adenine and thymine and between guanine and cytosine, and the significance of major and minor grooves.
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