ASU BIO 181 Exam 2 (modules 7-12)
Questions & Answers 2024
Draw the sugar in DNA and label the carbons as discussed in the lecture. Then circle
the carbon that is different in RNA. - CORRECT ANSWER-...
Which enzyme unwraps the double helix? - CORRECT ANSWER-Helicase
Which enzyme is used first to permit DNA polymerase III to begin replicating the 3'
strand? - CORRECT ANSWER-Primase
The double helix of DNA is wrapped around 1 3/4 times around which of these
components? - CORRECT ANSWER-Nucleosome
In the lagging strand, the DNA is read from the parental DNA's 3' to 5' end. - CORRECT
ANSWER-True
Which strand is produced more rapidly? - CORRECT ANSWER-Leading Strand
During DNA replication in the lagging strand there is production of this component: -
CORRECT ANSWER-Okazaki Fragment
For DNA Polymerase III to work, which of these components has to act first? -
CORRECT ANSWER-Primase
DNA mutation is greatly reduced by enzymes that proof read the newly replicated DNA.
- CORRECT ANSWER-True
Strands of the backbone of DNA are parallel. - CORRECT ANSWER-False
Uridine is a nucleotide in DNA. - CORRECT ANSWER-False
Replication of DNA is semi-conservative. - CORRECT ANSWER-True
The DNA polymerase that replicates the parental strand of DNA reads the parental DNA
from 5' to 3' and makes a new DNA strand from 3' to 5'. - CORRECT ANSWER-False
DNA replication in eukaryotes is sped up by multiple origins of replication. - CORRECT
ANSWER-True
, Messenger RNA is double stranded. - CORRECT ANSWER-False
The genetic code for the conversion of mRNA codons to proteins has redundancy. -
CORRECT ANSWER-True
The light reactions produce ________ and ___ and this process also results in the
release of ______. - CORRECT ANSWER-NADPH+H+, ATP, oxygen
The Calvin-Benson cycle takes in ________ and ___ from the light reaction and also
______________ to make carbohydrates. - CORRECT ANSWER-NADPH+H+, ATP,
carbon dioxide
The antenna system is in the _________ membranes. - CORRECT
ANSWER-Thylakoid
The most abundant protein in the world is called _______. - CORRECT
ANSWER-Rubisco
Protein synthesis changes the language of ___________ to the language of
___________. - CORRECT ANSWER-nucleotides, amino acids
During mRNA maturation, what is the name of the part of the mRNA that is removed? -
CORRECT ANSWER-Introns
Which sugar is present in RNA? - CORRECT ANSWER-Ribose
List one type of post-translational modification. - CORRECT ANSWER-Proteolysis,
Glycosylation, or Phosphorylation
List the two basic categories of nitrogenous bases in nucleic acids. - CORRECT
ANSWER-Purines and Pyrimidines
How many "stop" codons exist? - CORRECT ANSWER-3
How many Hydrogen bonds are there between an A and its paired nucleotide? -
CORRECT ANSWER-2
In the ribosome, what is the name of the bond that links one amino acids to the next? -
CORRECT ANSWER-Peptide Bond
Questions & Answers 2024
Draw the sugar in DNA and label the carbons as discussed in the lecture. Then circle
the carbon that is different in RNA. - CORRECT ANSWER-...
Which enzyme unwraps the double helix? - CORRECT ANSWER-Helicase
Which enzyme is used first to permit DNA polymerase III to begin replicating the 3'
strand? - CORRECT ANSWER-Primase
The double helix of DNA is wrapped around 1 3/4 times around which of these
components? - CORRECT ANSWER-Nucleosome
In the lagging strand, the DNA is read from the parental DNA's 3' to 5' end. - CORRECT
ANSWER-True
Which strand is produced more rapidly? - CORRECT ANSWER-Leading Strand
During DNA replication in the lagging strand there is production of this component: -
CORRECT ANSWER-Okazaki Fragment
For DNA Polymerase III to work, which of these components has to act first? -
CORRECT ANSWER-Primase
DNA mutation is greatly reduced by enzymes that proof read the newly replicated DNA.
- CORRECT ANSWER-True
Strands of the backbone of DNA are parallel. - CORRECT ANSWER-False
Uridine is a nucleotide in DNA. - CORRECT ANSWER-False
Replication of DNA is semi-conservative. - CORRECT ANSWER-True
The DNA polymerase that replicates the parental strand of DNA reads the parental DNA
from 5' to 3' and makes a new DNA strand from 3' to 5'. - CORRECT ANSWER-False
DNA replication in eukaryotes is sped up by multiple origins of replication. - CORRECT
ANSWER-True
, Messenger RNA is double stranded. - CORRECT ANSWER-False
The genetic code for the conversion of mRNA codons to proteins has redundancy. -
CORRECT ANSWER-True
The light reactions produce ________ and ___ and this process also results in the
release of ______. - CORRECT ANSWER-NADPH+H+, ATP, oxygen
The Calvin-Benson cycle takes in ________ and ___ from the light reaction and also
______________ to make carbohydrates. - CORRECT ANSWER-NADPH+H+, ATP,
carbon dioxide
The antenna system is in the _________ membranes. - CORRECT
ANSWER-Thylakoid
The most abundant protein in the world is called _______. - CORRECT
ANSWER-Rubisco
Protein synthesis changes the language of ___________ to the language of
___________. - CORRECT ANSWER-nucleotides, amino acids
During mRNA maturation, what is the name of the part of the mRNA that is removed? -
CORRECT ANSWER-Introns
Which sugar is present in RNA? - CORRECT ANSWER-Ribose
List one type of post-translational modification. - CORRECT ANSWER-Proteolysis,
Glycosylation, or Phosphorylation
List the two basic categories of nitrogenous bases in nucleic acids. - CORRECT
ANSWER-Purines and Pyrimidines
How many "stop" codons exist? - CORRECT ANSWER-3
How many Hydrogen bonds are there between an A and its paired nucleotide? -
CORRECT ANSWER-2
In the ribosome, what is the name of the bond that links one amino acids to the next? -
CORRECT ANSWER-Peptide Bond
