20818759
Descripción
Test por Ki Seung Nam, actualizado hace más de 1 año
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Creado por Ki Seung Nam
hace casi 5 años
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Pregunta 1
Pregunta
Assume that you have a eukaryotic cell with three chromosomes within it. How many 5’ ends would there be?
Respuesta
-
6
-
2
-
3
-
5
Pregunta 2
Pregunta
In the ribosome, what pairs with the codon?
Respuesta
-
IDFK
-
IDFC
-
IDK
-
IDCF
Pregunta 3
Pregunta
Uridine is a nucleotide in DNA.
Respuesta
- True
- False
Pregunta 4
Pregunta
DNA replication in eukaryotes is sped up by multiple origins of replication.
Respuesta
- True
- False
Pregunta 5
Pregunta
RNA synthesis, also called RNA transcription occurs in three phases. List them from beginning to end in order.
Respuesta
-
Initiation, elongation, and termination
-
Elongation, initiation, and termination
-
Termination, elongation, and Initiation
Pregunta 6
Pregunta
In the ribosome, what is the name of the bond that links one amino acid to the next?
Respuesta
-
A peptide bond
-
ATP
-
A pepto bond
-
A tidepod
Pregunta 7
Pregunta
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’.
Respuesta
- True
- False
Pregunta 8
Pregunta
During DNA replication is greatly reduced by enzymes that proof read the newly replicated DNA.
Respuesta
- True
- False
Pregunta 9
Pregunta
Which enzyme is used first to permit DNA polymerase III to begin replicating the 3’ strand?
Respuesta
-
Conservative replication
-
Parental strand
-
Primase
-
RNA
-
Mutation rate
Pregunta 10
Pregunta
During mRNA maturation what is the name of the part of the mRNA that is removed?
Respuesta
-
Introns
-
Ribose
-
Proteolysis
-
Primase
Pregunta 11
Pregunta
During DNA replication in the lagging strand there is production of this component?
Respuesta
-
Okazaki fragment
-
mRNA
-
tRNA
-
proteins
-
none of the above
Pregunta 12
Pregunta
How many “stop” codons exist?
Respuesta
-
2
-
3
-
5
-
6
Pregunta 13
Pregunta
Strands of the backbone of DNA are parallel?
Respuesta
- True
- False
Pregunta 14
Pregunta
RNA is double stranded.
Respuesta
- True
- False
Pregunta 15
Pregunta
Which sugar is present in RNA?
Respuesta
-
Ribose
-
Methionine
-
Nucleosome
-
Thymine
Pregunta 16
Pregunta
Which nucleotide is different in RNA compared to DNA?
Respuesta
-
Uridine, it takes the place of thymidine
-
Primase
-
Purines
-
Pyramidines
Pregunta 17
Pregunta
The double helix of DNA is wrapped about 1¾ times around which of these components?
Respuesta
-
Helicase
-
DNA polymerase III
-
DNA polymerase I
-
Nucleosome
-
DNA ligase
Pregunta 18
Pregunta
Replication of DNA is semi-conservative.
Respuesta
- True
- False
Pregunta 19
Pregunta
Protein synthesis changes from the language of [blank_start]nucleotides[blank_end] to the language of [blank_start]amino acids[blank_end].
Respuesta
-
nucleotides
-
amino acids
-
Oxygen
-
ATP
-
amino acids
-
nucleotides
-
ATP
-
CO2
Pregunta 20
Pregunta
Which enzyme unwraps the double helix?
Respuesta
-
Helicase
-
DNA polymerase III
-
DNA polymerase I
-
Nucleosome
-
DNA ligase
Pregunta 21
Pregunta
List one type of post-translational modification.
Respuesta
-
Proteolysis
-
Purines
-
Amino Acids
-
Primase
Pregunta 22
Pregunta
In eukaryotic cells the start codon for protein synthesis is [blank_start]methionine[blank_end].
Respuesta
-
methionine
-
elongation
-
peptide
-
thymine
Pregunta 23
Pregunta
The genetic code for the conversion of mRNA codons to proteins has redundancy.
Respuesta
- True
- False
Pregunta 24
Pregunta
List (select) the two basic categories of nitrogenous bases in nucleic acids.
Respuesta
-
Purines
-
Pyramidines
-
Primase
-
Protein
Pregunta 25
Pregunta
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] .
Respuesta
-
free
-
non-existent
-
leading
-
membrane-bound
-
dissolved
-
floating
Pregunta 26
Pregunta
In DNA, what does the nucleotide labeled as A pair with?
Respuesta
-
T (thymine)
-
K (Potassium)
-
O (Oxygen)
-
H (Hydrogen)
Pregunta 27
Pregunta
How many hydrogen bonds are there between an A and its paired nucleotide?
Respuesta
-
2
-
3
-
5
-
6
Pregunta 28
Pregunta
For DNA Polymerase III to work which of these components has to act first?
Respuesta
-
Conservative replication
-
Newly replicated strand
-
Primase
-
RNA
-
Mutation rate
Pregunta 29
Pregunta
Which strand is produced more rapidly?
Respuesta
-
Okazaki fragment
-
Lagging strand
-
Leading strand
-
3’
-
5’
Pregunta 30
Pregunta
In the lagging strand, the DNA is read from the parental DNA’s 3’ to 5’ end.
Respuesta
- True
- False
Pregunta 31
Pregunta
Draw the sugar in DNA and label the carbons as discussed in the lecture. Then circle the carbon that is different in RNA.
Respuesta
-
Image:A (binary/octet-stream)
-
Image:B (binary/octet-stream)
-
Image:C (binary/octet-stream)
-
Image:D (binary/octet-stream)
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