Which of the following processes is responsible for the conversion of DNA information into messenger RNA?
a. replication
b. transcription
c. duplication
d. translation
e. any of these
b. transcription
The information from messenger RNA is used to create polypeptide sequences during the process of
a. transduction.
b. transcription.
c. transformation.
d. translation.
d. translation
If an mRNA carries CUCGAU as a sequence, what would be the complementary sequence on the DNA?
a. CTCGAT
b. GUGCUA
c. GTGCAT
d. GAGCTA
e. ACATGC
d. GAGCTA
A gene is a DNA sequence that codes for a protein or
a. RNA.
b. DNA.
c. ribosomes.
d. a lipid.
e. more than one of these.
a. RNA.
How many nucleotide bases compose one “genetic word”?
a. 1
b. 2
c. 3
d. 4
e. 5
c. 3
Which of the following is NOT true of the genetic code?
a. It is the same for almost all organisms.
b. There are 64 codons.
c. It has within it 5 stop codons.
d. Most amino acids have more than one codon that codes for it.
e. Each codon is made up of three nucleotides.
c. It has within it 5 stop codons.
What is the genetic code?
a. all of our genes collectively
b. all of our base-pairs collectively
c. the genetic “words” that code for amino acids
d. the genes on DNA that code for proteins
e. more than one of these describes the genetic code
c. the genetic “words” that code for amino acids
Which RNA is the first to be activated in the process of protein synthesis?
a. mRNA
b. tRNA
c. rRNA
d. dRNA
e. sRNA
c. rRNA
Which of the following could NOT be an RNA transcript?
a. GGCUAG
b. CCGATC
c. UUAACC
d. ACGGAU
e. GAGCAU
b. CCGATC
Transcription starts at a region of DNA called a(n)
a. sequencer.
b. promoter.
c. activator.
d. terminator.
e. transcriber.
b. promoter.
If the DNA sequence was 5’-CGAATC, the complementary strand would be
a. 5’-GATTCG.
b. 5’-GCUUAG.
c. 5’-GCTTAG.
d. 5’-UAGCGU.
e. none of these.
c. 5’-GCTTAG.
In eukaryotes, most translation takes place in or on the
a. nucleus.
b. rough endoplasmic reticulum.
c. smooth endoplasmic reticulum.
d. cytoplasm.
e. Golgi bodies.
d. cytoplasm