DNA vs RNA?
Reveal answer
DNA: double, thymine, deoxyribose. RNA: single, uracil, ribose.
Key words: uracil
4(b) INHERITANCE · RECALL
4.17B RNA
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What does mRNA carry?
Reveal answer
A copy of a gene from the nucleus to the ribosome.
Key words: ribosome
What does tRNA carry?
Reveal answer
A specific amino acid.
Key words: amino acid
What is meant by the term RNA?
Reveal answer
Ribonucleic acid, usually a single-stranded nucleotide polymer.
Key words: RNA
What is meant by the term mRNA?
Reveal answer
RNA copy carrying coding information from DNA to a ribosome.
Key words: mRNA
What is meant by the term uracil?
Reveal answer
RNA base that pairs with adenine.
Key words: uracil
What is meant by the term transcription?
Reveal answer
Synthesis of RNA using a DNA template.
Key words: transcription
DNA and RNA: for Sugar, give the dna and the rna.
Reveal answer
DNA: Deoxyribose. RNA: Ribose.
Key words: Sugar
DNA and RNA: for Bases, give the dna and the rna.
Reveal answer
DNA: A, T, C, G. RNA: A, U, C, G.
Key words: Bases
DNA and RNA: for Typical strands, give the dna and the rna.
Reveal answer
DNA: Double-stranded helix. RNA: Usually single-stranded.
Key words: Typical strands
DNA and RNA: for Stability/scale, give the dna and the rna.
Reveal answer
DNA: Long-term, long molecules. RNA: Often shorter-lived and shorter.
Key words: Stability/scale
DNA and RNA: for Main role here, give the dna and the rna.
Reveal answer
DNA: Stores genome. RNA: Carries/interprets information for proteins.
Key words: Main role here
True or false, and why? “RNA contains thymine.”
Reveal answer
False. Standard RNA uses uracil instead.
True or false, and why? “mRNA is an exact copy of both DNA strands.”
Reveal answer
False. It is complementary to one template strand and corresponds to the coding sequence with U replacing T.
True or false, and why? “All RNA is messenger RNA.”
Reveal answer
False. Cells also use transfer, ribosomal and many regulatory RNAs.