A1.2.7 Differences between DNA and RNA Flashcards
What sugar is found in RNA?
RNA contains ribose.
What is a key difference between the sugars in DNA and RNA?
RNA’s ribose has an OH group at the 2’ position, while DNA’s 2’-deoxyribose lacks this OH group.
What base does RNA use instead of thymine?
RNA uses uracil (U) instead of thymine (T).
What is the primary function of DNA?
DNA serves as the genetic information storage molecule.
Why is DNA more stable than RNA?
DNA’s double-stranded structure and less reactive deoxyribose sugar contribute to its stability.
What are the bases found in RNA?
Adenine (A), Uracil (U), Cytosine (C), Guanine (G).
What are the bases found in DNA?
Adenine (A), Thymine (T), Cytosine (C), Guanine (G).
Where is DNA primarily located in eukaryotic cells?
DNA is primarily located in the nucleus.
What is the base pairing rule for RNA?
A pairs with U (two hydrogen bonds) and C pairs with G (three hydrogen bonds).
What are the roles of RNA?
RNA has multiple roles including mRNA, tRNA, and rRNA.
Why is RNA less stable than DNA?
RNA’s single-stranded structure and reactive OH group on ribose make it less stable.
What special enzyme do some viruses use to replicate their RNA genomes?
Some viruses use reverse transcriptase to replicate their RNA genomes.
What is the structural form of DNA?
DNA exists as a double helix, with two strands coiled around each other.
What sugar is found in DNA?
DNA contains 2’-deoxyribose.
Where is RNA primarily located in the cell?
RNA is found throughout the cell, especially in the cytoplasm and ribosomes.
What is the structural form of RNA?
RNA typically exists as a single strand, though it can form complex secondary structures.
What is the base pairing rule for DNA?
A pairs with T (two hydrogen bonds) and C pairs with G (three hydrogen bonds).
