1. Which of the following makes a molecule of DNA from a DNA template? a. DNA po
ID: 216309 • Letter: 1
Question
1.
Which of the following makes a molecule of DNA from a DNA template?
a. DNA polymerase b. RNA polymerase
c. helicase d. RNA primer
2. How many nucleotide bases are found in the code for each amino acid?
a. 2 b. 3
c. 4 d. Varies with the particular amino acid
3. The processes of transcription and translation are coupled in
a. Eukaryotic cells. b. Prokaryotic cells.
c. Both eukaryotic and prokaryotic cells. d. Neither eukaryotic nor prokaryotic cells.
Explanation / Answer
1. a) DNA polymerase: Synthesizes DNA from DNA templates.
b) RNA polymerase: Synthesizes RNA from DNA template.
c) Helicase: Separates strands of double strand DNA.
d) RNA primer: A short sequence of RNA required for the initiation of replication and transcription.
ANSWER: a) DNA polymerase: Synthesizes DNA from DNA templates.
2. Amino acids are coded by a sequence of 3 nucleotides, known as codon.
ANSWER: b. 3
3. In eukaryotes, transcription and translation occurs separately in nucleus and cytoplasm respectively. But, in prokaryotes, transcription and translation occurs simultaneously in cytoplasm.
ANSWER: b. Prokaryotic cells.
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