Review questions, Nov 20
Work on these problems before the Nov 20 class.
- If the first 9 nucleotide
sequence of the template DNA is TGGGAAAAT, the corresponding RNA sequence would be _________.
- TGGGAAAAT b.
ACCCTTTTA c. UGGGAAAAU d. ACCCUUUUA
- When messenger RNA (mRNA) is
being made, the RNA base ____ always pairs with the DNA base _____.
- U.........T b.
T.........G c. U.........A d. A.........U e. T.........A
- Which one of the
following statements is true?
- Each DNA base codes
for three amino acids.
- Each gene codes for
three proteins.
- It takes three genes
to code for one protein.
- Each triplet has
many different meanings.
- Each amino acid in a
protein is coded for by three bases in the DNA.
- Using the codon table, translate the mRNA sequence
ACUAAUGGGCUGUGA into the corresponding amino acid sequence.
- How many bases of mRNA are
required to code for 90 amino acids.
- 30 bases b.90 bases c.180 bases d.270
bases e.360 bases
- In order for
transcription to occur in that strand, there would have to be a specific sequence
called __________. In order for
transcription to stop, there would have to be a specific sequence called
________.
- intron...................exon
- start codon...........stop codon
- promoter...............terminator
- initiator..................terminator
- Which one of the
following catalyzes the linkage between nucleotides to form RNA?
- RNA polymerase b.
RNA ligase c.
DNA polymerase
d. reverse transcriptase e. ribosome
- Which one of the
following statements correctly describes mRNA processing in eukaryotes?
- Introns are cut out and the resulting exons are spliced together.
- Exons are cut out and the introns
are spliced together.
- Introns are cut out and spliced together at the end of
the mRNA.
- Introns are cut out and transported to the ribosomes.