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Exam (elaborations) NUTR641: Nutritional Biochemistry I (D01) (NUTR641) Quiz: Basic Concepts of Genetic Expression Answered Fall 2024/25.$12.99
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Colin Andres-Paguirigan's Quiz History: Quiz: Basic Concepts of Genetic Expression
Score for this attempt: 76 out of 80
Question 1
0 / 2 pts
stop
CpG island
exonuclease binding
pause
disconnect
Q
uestion 2
2 / 2 pts
circular DNA is Z-form
viral and bacterial DNA is always single s...
8/27/24, 2:39 PM Colin Andres-Paguirigan's Quiz History: Quiz: Basic Concepts of Genetic Expression
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Quiz: Basic Concepts of Genetic Expression Results for Colin Andres-Paguirigan
Correct answers are hidden.
Score for this attempt: 76 out of 80
Submitted Jul 28 at 8:38pm
This attempt took 81 minutes.
IncorrectQuestion 1
pts
Eukaryotic transcription termination generally occurs at ________ sites in the DNA sequence.
stop
CpG island
exonuclease binding
pause
disconnect
Question 2
pts
Which of the following explains why circular DNA, such as the chromosomes of some viruses and bacteria, appears to be twisted?
circular DNA is Z-form
viral and bacterial DNA is always single stranded
supercoiling
hybridization
none of the above
Question 3
pts
In molecular cloning, transformed organisms must be identified. One common method for accomplishing this involves the
inclusion of ________ in the plasmid.
an antibiotic resistance gene
a deletion
an origin of replication
a nuclease gene
a restriction site
Question 4
pts
Which of the following explains supercoiling in naturally occurring DNA?
negatively supercoiled, making the helix tighter
positively supercoiled, making the helix looser
positively supercoiled, making the helix tighter
negatively supercoiled without changing the nature of the helix
negatively supercoiled, making the helix looser
This study source was downloaded by 100000891127392 from CourseHero.com on 09-20-2024 15:07:50 GMT -05:00
, 8/27/24, 2:39 PM Colin Andres-Paguirigan's Quiz History: Quiz: Basic Concepts of Genetic Expression
IncorrectQuestion 5
pts
Which of the following eukaryotic RNA polymerase is correctly paired with the type of RNA that it produces?
RNA polymerase I: rRNA
RNA polymerase II: mRNA from protein-coding genes
RNA polymerase III: small RNAs such as miRNA and snRNA
RNA polymerase III: tRNA
all of the above
Question 6
pts
Which type of DNA repair is used to remove and replace a single modified base that cannot be converted back to the normal base
by a direct repair process?
mismatch repair
DNA photolyase
nucleotide excision repair
base excision repair
none of the above
Question 7
pts
Because of the high temperature ________ step during a PCR reaction, the DNA polymerase from ________ is used.
primer extension; bacteriophage λ
primer extension; E. coli
strand separation; E. coli
strand separation; Thermus aquaticus
primer annealing; Thermus aquaticus
Question 8
pts
RNA interference is a mechanism of post-transcriptional RNA-dependent ________.
coactivation
apoptosis
chromatin-remodeling
gene silencing
histone methylation
Question 9
pts
Which of the eukaryotic transcription factors is responsible for binding the TATA box?
TFIID
TFIIH
TFIIF
TFIIE
This study source was downloaded by 100000891127392 from CourseHero.com on 09-20-2024 15:07:50 GMT -05:00
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