1What is RNA composed of?
A single polynucleotide strand.
2What sugar does RNA contain?
Ribose.
3What base is found in RNA instead of thymine?
Uracil (U).
4What is mRNA's role?
Carries genetic code from DNA.
5What does tRNA do?
Transfers amino acids to ribosomes.
6What is the structure of tRNA?
Cloverleaf shape with anticodon.
7What is rRNA's function?
Forms ribosome's structure for protein synthesis.
8Where does transcription occur in eukaryotes?
In the nucleus.
9Where does transcription occur in prokaryotes?
In the cytoplasm.
10What enzyme attaches to DNA in transcription?
RNA polymerase.
11What breaks hydrogen bonds in DNA?
RNA polymerase.
12What does RNA polymerase synthesize?
A complementary mRNA strand.
13What binds to DNA's sense strand?
RNA nucleotides.
14What holds RNA and DNA temporarily?
Base pairing.
15What bonds DNA's strands back together?
Double helix formation.
16Where does RNA polymerase stop?
At a stop signal.
17What happens when RNA polymerase detaches?
mRNA separates from DNA.
18What is translation?
Making proteins from mRNA.
19Where does translation occur?
In ribosomes.
20What carries amino acids to ribosomes?
tRNA.
21What forms bonds between amino acids?
ATP.
22What matches codons to amino acids?
Anticodon on tRNA.
23What moves along mRNA in translation?
Ribosome.
24What happens at stop codon?
Ribosome releases polypeptide chain.