STRAIGHTERLINE MICROBIOLOGY 250
EXAMINATION STUDY GUIDE 2026
COMPLETE QUESTIONS AND ANSWERS
◉ viral nucleic acid types include which of the following?.
Answer: Double-stranded DNA, single-stranded DNA, double-
stranded RNA, and single-stranded RNA
◉ The envelope of enveloped viruses....
Answer: is obtained by viral budding or exocytosis
◉ An example of an amphipathic molecule found in living cells is ___.
Answer: Phospholipid
◉ The chemical bonds in peptidoglycan can be hydrolyzed by the
enzyme ___, found in tears and saliva..
Answer: lysozyme
◉ DNA polymerase 1.
Answer: removes primers
, ◉ An organism that can use gaseous oxygen in metabolism and has
the enzymes to process toxic oxygen products is an....
Answer: aerobe
◉ Which of the following does not indicate microbe involvement in
energy and nutrient flow....
Answer: Thermal hot springs warmed by heat from the earths
interior
◉ The process in which mutations are removes and the correct
bases added is called....
Answer: excision repair
◉ A scientist studying the sequence of nucleotides in the rRNA of
bacterial species is working on....
Answer: determining evolutionary relatedness
◉ Reactants are converted to products by....
Answer: breaking and forming bonds
◉ If the wild type DNA sequence reads THE CAT ATE THE BIG RAT,
what type of mutation would change the sequence to THE CAT ATE
THE BAG RAT?.
Answer:
EXAMINATION STUDY GUIDE 2026
COMPLETE QUESTIONS AND ANSWERS
◉ viral nucleic acid types include which of the following?.
Answer: Double-stranded DNA, single-stranded DNA, double-
stranded RNA, and single-stranded RNA
◉ The envelope of enveloped viruses....
Answer: is obtained by viral budding or exocytosis
◉ An example of an amphipathic molecule found in living cells is ___.
Answer: Phospholipid
◉ The chemical bonds in peptidoglycan can be hydrolyzed by the
enzyme ___, found in tears and saliva..
Answer: lysozyme
◉ DNA polymerase 1.
Answer: removes primers
, ◉ An organism that can use gaseous oxygen in metabolism and has
the enzymes to process toxic oxygen products is an....
Answer: aerobe
◉ Which of the following does not indicate microbe involvement in
energy and nutrient flow....
Answer: Thermal hot springs warmed by heat from the earths
interior
◉ The process in which mutations are removes and the correct
bases added is called....
Answer: excision repair
◉ A scientist studying the sequence of nucleotides in the rRNA of
bacterial species is working on....
Answer: determining evolutionary relatedness
◉ Reactants are converted to products by....
Answer: breaking and forming bonds
◉ If the wild type DNA sequence reads THE CAT ATE THE BIG RAT,
what type of mutation would change the sequence to THE CAT ATE
THE BAG RAT?.
Answer:
