MCB 150 Unit 2 Questions With Complete Solutions
-10 and -35 sites are conserved and have consensus sequences
Correct Answers These are hotspots, 10 bases away from the
beginning of transcription site and 35 bases upstream from the
transcription site
Most important coding site
"X" dependent Correct Answers What it uses as a template
"Y" synthesizing Correct Answers What it is making
10-nm chromatin fibers " Correct Answers "Only" shorten the
length of DNA by six-fold
3 nucleotides per amino acid is the minimum number to account
for the 20 amino acids we already know about. Correct Answers
If only one nucleotide coded for one amino acid there would
only be 4 amino acids and not 20.
30-nm fibers Correct Answers Next level of organization after
10nm
AAG end Correct Answers Anticodon
ACC end of tRNA Correct Answers Amino acid attachment site
Aerobic Respiration Correct Answers This includes Pyruvate
Oxidation and the Krebs cycle.
,Allosteric regulators Correct Answers Bind to other sites on an
enzyme that are not the binding sites
Aminoacyl tRNA Synthetases Correct Answers "Charging"
reaction catalyzed by enzymes
A different aminoacyl tRNA synthetase for each amino acid
E.g. histidyl tRNA synthetase adds His to its tRNA
Each enzyme recognizes both "ends" of tRNA, which enables it
to identify if this is a tRNA that that is "allowed" to add its
amino acid to...
Annealing Correct Answers Renature in a way that is
complementary and antiparallel.
This can happen if you remove the chemical, or cool the DNA
back down.
Anti-codon directionality Correct Answers 3'-5'
ATP Correct Answers Adenosine TriPhosphate
Ultimately, all the energy harnessed from oxidation of food
sources is used to make ATP.
ATP synthase Correct Answers This allows a small channel for
the protons to pass through.
AUG Correct Answers Initiator codon.
, Codes for Met
Bacteria only has one RNA polymerase Correct Answers
Holoenzyme include sigma subunit but Core enzyme does not
Base stacking interactions Correct Answers Planar organic rings
are hydrophobic so they stack to minimize contact.
Binding on amino acid to tRNA requires energy Correct
Answers Requires input of energy provided by hydrolysis of
ATP to AMP and pyrophosphate (PPi)
Biosynthesis Correct Answers Takes precursors and makes
macromolecules
Catabolism Correct Answers Takes molecules (FOOD) and
breaks them down
Cellular Respiration Correct Answers The breakdown of
glucose to CO2 and H2O
Central Dogma? Correct Answers DNA → RNA → Proteins
Centromeres Correct Answers Center of chromosome
Chargaff's Rule Correct Answers Amount of each dNTP varies
between organisms, but:
[dA] = [dT] and [dC] = [dG] in ALL organisms
Chromatin Correct Answers Looks like beads on a string.
-10 and -35 sites are conserved and have consensus sequences
Correct Answers These are hotspots, 10 bases away from the
beginning of transcription site and 35 bases upstream from the
transcription site
Most important coding site
"X" dependent Correct Answers What it uses as a template
"Y" synthesizing Correct Answers What it is making
10-nm chromatin fibers " Correct Answers "Only" shorten the
length of DNA by six-fold
3 nucleotides per amino acid is the minimum number to account
for the 20 amino acids we already know about. Correct Answers
If only one nucleotide coded for one amino acid there would
only be 4 amino acids and not 20.
30-nm fibers Correct Answers Next level of organization after
10nm
AAG end Correct Answers Anticodon
ACC end of tRNA Correct Answers Amino acid attachment site
Aerobic Respiration Correct Answers This includes Pyruvate
Oxidation and the Krebs cycle.
,Allosteric regulators Correct Answers Bind to other sites on an
enzyme that are not the binding sites
Aminoacyl tRNA Synthetases Correct Answers "Charging"
reaction catalyzed by enzymes
A different aminoacyl tRNA synthetase for each amino acid
E.g. histidyl tRNA synthetase adds His to its tRNA
Each enzyme recognizes both "ends" of tRNA, which enables it
to identify if this is a tRNA that that is "allowed" to add its
amino acid to...
Annealing Correct Answers Renature in a way that is
complementary and antiparallel.
This can happen if you remove the chemical, or cool the DNA
back down.
Anti-codon directionality Correct Answers 3'-5'
ATP Correct Answers Adenosine TriPhosphate
Ultimately, all the energy harnessed from oxidation of food
sources is used to make ATP.
ATP synthase Correct Answers This allows a small channel for
the protons to pass through.
AUG Correct Answers Initiator codon.
, Codes for Met
Bacteria only has one RNA polymerase Correct Answers
Holoenzyme include sigma subunit but Core enzyme does not
Base stacking interactions Correct Answers Planar organic rings
are hydrophobic so they stack to minimize contact.
Binding on amino acid to tRNA requires energy Correct
Answers Requires input of energy provided by hydrolysis of
ATP to AMP and pyrophosphate (PPi)
Biosynthesis Correct Answers Takes precursors and makes
macromolecules
Catabolism Correct Answers Takes molecules (FOOD) and
breaks them down
Cellular Respiration Correct Answers The breakdown of
glucose to CO2 and H2O
Central Dogma? Correct Answers DNA → RNA → Proteins
Centromeres Correct Answers Center of chromosome
Chargaff's Rule Correct Answers Amount of each dNTP varies
between organisms, but:
[dA] = [dT] and [dC] = [dG] in ALL organisms
Chromatin Correct Answers Looks like beads on a string.
