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WorksheetsMicrobial Genetics
Total questions: 20
Worksheet time: 12mins
Which of these is NOT true about DNA?
serves as the genetic material passed from parent to offspring
remains constant despite changes in environmental conditions
provides the instructions for the synthesis of messenger RNA
is read by ribosomes during the process of translation
Which of these represents the central dogma of how genetic information flows in cells?
protein to DNA to RNA
RNA to DNA to protein
DNA to RNA to protein
DNA to protein to RNA
Which enzyme replaces the RNA nucleotides in a primer with DNA nucelotides?
DNA polymerase III
DNA polymerase I
primase
helicase
Which of these is NOT involved in the initiation step of DNA replication?
ligase
DNA gyrase
single-stranded binding protein
primase
During which stage of prokaryotic transcription is the σ subunit of the RNA polymerase involved?
initiation
elongation
termination
splicing
Which of the following is involved in the initiation of transcription?
primer
origin
promoter
start codon
What is the name of the three-base sequence in the mRNA that binds to a tRNA molecule?
P site
codon
CCA binding site
anticodon
Which of the following is the amino acid that appears at the N-terminus (the one that appears first) in all newly translated prokaryotic and eukaryotic polypeptides (proteins)?
tryptophan
methionine
selenocysteine
glycine
The DNA of microorganisms is made up of subunits called
nucleotides.
histones.
amino acids.
polymerases.
carries the codon
mRNA
tRNA
rRNA
promoter of the gene
carries the anticodon
tRNA
mRNA
rRNA
promoter of the gene
The entire compliment of genes in an organism
Gene
Chromosome
DNA
Genome
What is the function of DNA polymerase?
To break hydrogen bonds
Inserting complementary nucleotides
Creating replication forks
Holding the DNA strand stable during unwinding
A permanent, inheritable change in the genetic information is called
mutation.
translation.
transcription.
alteration.
