Molecular Biology Exam test quiz
and answers graded A+
Which of the following is a feature of all living cells? - ANS✅✅Respond to stimuli.
Microscopy: A longitudinal cut through a bacterium showing the distribution of ribosomes in that
section of the cytosol - ANS✅✅Transmission Electron.
Microscopy:To the right is a black and white rendition of the long-section of an anther, the pollen-
bearing organ of a flower. The original micrograph had brilliant colors with the pollen stained yellow-
green while different cell types visible in the narrow focal plane of the cut or intact surface were
variously stained orange and green. - ANS✅✅Fluorescence.
Microscopy: The three-dimensional appearance of the microtubule network in a yeast cell -
ANS✅✅Confocal.
Microscopy: Nucleosomes arrayed on a strand of DNA - ANS✅✅Transmission or scanning electron.
Select the smaller of the two organelles: peroxisome or nucleosome. - ANS✅✅Nucleosome.
Model Organisms: Metabolic balance of photosynthesis and respiration - ANS✅✅Arabidopsis.
Model Organisms: Behavior in response to the perception of air-borne volatile organic compounds -
ANS✅✅All were correct.
Model Organisms: Vertebrate development - ANS✅✅Danio rerio.
I purified one of the following macromolecular complexes and hydrolyzed it to its subunit level.
ANalysis of the hydrolysate by high performance liquid chromatography revealed ribose, purines,
pyrimidines, and amino acids. What was the macromolecular complex? - ANS✅✅Ribosome.
If noncovalent interactions have a fraction of the energy of a covalent bond, what allows DNA to
remain together as a double helix? - ANS✅✅Many noncovalent interactions of the same type.
and answers graded A+
Which of the following is a feature of all living cells? - ANS✅✅Respond to stimuli.
Microscopy: A longitudinal cut through a bacterium showing the distribution of ribosomes in that
section of the cytosol - ANS✅✅Transmission Electron.
Microscopy:To the right is a black and white rendition of the long-section of an anther, the pollen-
bearing organ of a flower. The original micrograph had brilliant colors with the pollen stained yellow-
green while different cell types visible in the narrow focal plane of the cut or intact surface were
variously stained orange and green. - ANS✅✅Fluorescence.
Microscopy: The three-dimensional appearance of the microtubule network in a yeast cell -
ANS✅✅Confocal.
Microscopy: Nucleosomes arrayed on a strand of DNA - ANS✅✅Transmission or scanning electron.
Select the smaller of the two organelles: peroxisome or nucleosome. - ANS✅✅Nucleosome.
Model Organisms: Metabolic balance of photosynthesis and respiration - ANS✅✅Arabidopsis.
Model Organisms: Behavior in response to the perception of air-borne volatile organic compounds -
ANS✅✅All were correct.
Model Organisms: Vertebrate development - ANS✅✅Danio rerio.
I purified one of the following macromolecular complexes and hydrolyzed it to its subunit level.
ANalysis of the hydrolysate by high performance liquid chromatography revealed ribose, purines,
pyrimidines, and amino acids. What was the macromolecular complex? - ANS✅✅Ribosome.
If noncovalent interactions have a fraction of the energy of a covalent bond, what allows DNA to
remain together as a double helix? - ANS✅✅Many noncovalent interactions of the same type.
