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WorksheetsEXPRESSION OF BIOLOGICAL INFORMATION
Total questions: 30
Worksheet time: 30mins
Which of the following sequences of processes correctly reflects the central dogma?
Protein synthesis, transcription, translation.
Protein synthesis, translation, transcription.
Transcription, translation, protein synthesis.
Translation, transcription, protein synthesis.
What bases are considered Purines?
Adenine & Guanine
Adenine & Thymine
Cytosine & Guanine
Cytosine & Adenine
What bases are considered Pyrimidines?
Adenine & Guanine
Adenine & Thymine
Cytosine & Thymine
Cytosine & Guanine
What does the term semi-conservative mean?
DNA consists of half an old strand and half a new strand and the code stays conserved.
DNA consists of two old strands and the code stays conserved.
DNA consists of two new strands and the code stays conserved.
DNA consists of half an old strand and half a new strand and the code changes each time.
Which enzyme catalyzes unwinds the DNA double helix?
DNA Ligase
DNA Helicase
DNA Polymerase
RNA Primase
Which enzyme catalyzes adding of complementary bases to the template strand in the new strands 5’ to 3’ direction?
DNA Ligase
DNA Helicase
DNA Polymerase
RNA Primase
Which enzyme catalyzes adding of RNA Primer to begin the process of generating the complementary strand?
DNA Ligase
DNA Helicase
DNA Polymerase
RNA Primase
Holds the DNA strands apart to allow DNA to be replicated.
Single-Stranded Bind Protein
Exonuclease
Pentase
phosphodiesterase
Which organelle is the location where protein is made?
Ribosome
Nucleus
Cytoplasm
Nucleotide
During translation, this type of ribonucleic acid is responsible for delivering amino acids to help make a protein.
mRNA
rRNA
tRNA
dRNA
mRNA is formed during this process.
Translation
Transcription
Replication
Delivery
How many amino acids are found on one tRNA?
20
4
1
3
Which of the following is the complementary mRNA sequence to this DNA strand: AACTGAA
UUGACUU
TTGACTT
AACTGAA
AACUGAA
Name the process.
Translation
Replication
Translocation
Transcription
A protein that binds to the operator and blocks the RNA polymerase is
regulator
repressor
activator
corepressor
In the lac operon the inducer is
allolactose
glucose
galactose
all of the above
What is 1 in the diagram?
RNA polymerase
Inducer
Repressor
Operator
What is 2 in the diagram?
RNA polymerase
Inducer
Repressor
Operator
What is 4 in the diagram?
RNA polymerase
Inducer
Repressor
Operator
Which of the following enzymes is/are required in protein synthesis?
RNA polymerase.
Helicase.
Aminoacy-tRNA-synthetase.
Peptidyl transferase.
What is 5 in the diagram?
RNA polymerase
Inducer
Repressor
Operator
Which of the following statements are TRUE about genetic code?
Genetic code is a triplet code.
Genetic code is specific.
Genetic code AUG is the termination codon.
Genetic code AUG is the code for amino acid, methionine.
Which of the following is/are stop codon(s)?
UGA
UAA
AUG
UAG
