Question 1
Question
Assume that you have a eukaryotic cell with three chromosomes within it. How many 5’ ends would there be?
Question 2
Question
In the ribosome, what pairs with the codon?
Question 3
Question
Uridine is a nucleotide in DNA.
Question 4
Question
DNA replication in eukaryotes is sped up by multiple origins of replication.
Question 5
Question
RNA synthesis, also called RNA transcription occurs in three phases. List them from beginning to end in order.
Answer
-
Initiation, elongation, and termination
-
Elongation, initiation, and termination
-
Termination, elongation, and Initiation
Question 6
Question
In the ribosome, what is the name of the bond that links one amino acid to the next?
Answer
-
A peptide bond
-
ATP
-
A pepto bond
-
A tidepod
Question 7
Question
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’.
Question 8
Question
During DNA replication is greatly reduced by enzymes that proof read the newly replicated DNA.
Question 9
Question
Which enzyme is used first to permit DNA polymerase III to begin replicating the 3’ strand?
Answer
-
Conservative replication
-
Parental strand
-
Primase
-
RNA
-
Mutation rate
Question 10
Question
During mRNA maturation what is the name of the part of the mRNA that is removed?
Answer
-
Introns
-
Ribose
-
Proteolysis
-
Primase
Question 11
Question
During DNA replication in the lagging strand there is production of this component?
Answer
-
Okazaki fragment
-
mRNA
-
tRNA
-
proteins
-
none of the above
Question 12
Question
How many “stop” codons exist?
Question 13
Question
Strands of the backbone of DNA are parallel?
Question 14
Question
RNA is double stranded.
Question 15
Question
Which sugar is present in RNA?
Answer
-
Ribose
-
Methionine
-
Nucleosome
-
Thymine
Question 16
Question
Which nucleotide is different in RNA compared to DNA?
Question 17
Question
The double helix of DNA is wrapped about 1¾ times around which of these components?
Answer
-
Helicase
-
DNA polymerase III
-
DNA polymerase I
-
Nucleosome
-
DNA ligase
Question 18
Question
Replication of DNA is semi-conservative.
Question 19
Question
Protein synthesis changes from the language of [blank_start]nucleotides[blank_end] to the language of [blank_start]amino acids[blank_end].
Answer
-
nucleotides
-
amino acids
-
Oxygen
-
ATP
-
amino acids
-
nucleotides
-
ATP
-
CO2
Question 20
Question
Which enzyme unwraps the double helix?
Answer
-
Helicase
-
DNA polymerase III
-
DNA polymerase I
-
Nucleosome
-
DNA ligase
Question 21
Question
List one type of post-translational modification.
Answer
-
Proteolysis
-
Purines
-
Amino Acids
-
Primase
Question 22
Question
In eukaryotic cells the start codon for protein synthesis is [blank_start]methionine[blank_end].
Answer
-
methionine
-
elongation
-
peptide
-
thymine
Question 23
Question
The genetic code for the conversion of mRNA codons to proteins has redundancy.
Question 24
Question
List (select) the two basic categories of nitrogenous bases in nucleic acids.
Answer
-
Purines
-
Pyramidines
-
Primase
-
Protein
Question 25
Question
There are two types of protein synthesis in eukaryotic cells. These two types can be distinguished because the polyribosome is either [blank_start]free[blank_end] or [blank_start]membrane-bound[blank_end] .
Answer
-
free
-
non-existent
-
leading
-
membrane-bound
-
dissolved
-
floating
Question 26
Question
In DNA, what does the nucleotide labeled as A pair with?
Answer
-
T (thymine)
-
K (Potassium)
-
O (Oxygen)
-
H (Hydrogen)
Question 27
Question
How many hydrogen bonds are there between an A and its paired nucleotide?
Question 28
Question
For DNA Polymerase III to work which of these components has to act first?
Answer
-
Conservative replication
-
Newly replicated strand
-
Primase
-
RNA
-
Mutation rate
Question 29
Question
Which strand is produced more rapidly?
Answer
-
Okazaki fragment
-
Lagging strand
-
Leading strand
-
3’
-
5’
Question 30
Question
In the lagging strand, the DNA is read from the parental DNA’s 3’ to 5’ end.
Question 31
Question
Draw the sugar in DNA and label the carbons as discussed in the lecture. Then circle the carbon that is different in RNA.