Reference no: EM1383982
Suppose that the genes required for Isoleucine (an amino acid) biosynthesis are contained within an operon. If the cell is grown in the presence of high amounts of isoleucine you would expect to find:
The repressor protein to bind to the operator, allowing transcription.
The repressor protein to bind to the operator, preventing transcription.
The repressor protein released from the operator, preventing transcription.
The repressor protein released from the operator, allowing transcription.
Question 2
The tRNA with UAU as the anticodon would be attached to which amino acid?
isoleucine
serine
leucine
tryrosine
Question 3
In an expression plasmid, the origin of replication: _________________
Is the position where the base number begins at 1.
allows for growth of plasmid containing bacteria in the presence of antibiotics.
is responsible for the replication of mRNA.
allows the bacteria to duplicate the plasmid.
Question 4
The difference between the genome of an organism and the epigenome is: _____________________
The accumulation of mutations in the DNA sequence.
The epigenome refers to changes in DNA expression due to changes in DNA packaging.
nothing, both terms refer to the genetic content of an organism
Question 5
Which of these is not used in DNA replication?
Helicase
DNA polymerase
Primer
RNA polymerase
Question 6
During cell division, the chromosomal DNA becomes
more condensed
less condensed
there is no change in the condensation level.
Question 7
The correct order of DNA segments in an operon is:
Promoter, structural genes, operator.
Promoter, operator, structural genes.
Operator, structural genes, promoter.
Operator, promoter, structural genes.
Question 8
Is the following statement true of prokaryotic cells, eukaryotic cells or both? One gene can encode multiple different proteins (different in amino acid sequence).
Prokaryotic
Eukaryotic
Both prokaryotic and eukaryotic
Question 9
Which of the following terms refers to a region of a chromosome that has a specifiic function?
DNA
Gene
Allele
Genotype
Question 10
Which of the following DNA sequences is a recognition site for restriction endonucleases:
TTTT
AATT
TAAT
ATTA
AAAA
Question 11
Separation of the original DNA strands is due to the action of:
polymerase
helicase
RNA primers
single stranded binding protein
Question 12
The following mRNA: ATG CAT CAT, codes for which of the following amino acids:
Tyr Tyr Val
Val Tyr Tyr
Met His His
Question 13
A gene codes for a protein that is 500 amino acids long. Which of the following mutations is likely to be the most deleterious?
a nonsense mutation at the 490th codon
a missense mutation at the 490th codon
a nonsense mutation at the fifth codon
a missense mutation at the fifth codon
Question 14
Which of these is not used in DNA replication?
RNA polymerase
Primer
Helicase
DNA polymerase
Question 15
Is the following statement true of prokaryotic cells, eukaryotic cells or both? Multiple genes can be transcribed together into a single mRNA.
Prokaryotic
Eukaryotic
Both prokaryotic and eukaryotic
|
Determine the coefficient of friction
: A mass of 2 kilogram is projected with a speed of 3m/s.if a plane inclined 20 degrees with the horizontal. After travelling travelling 0.8 meters, the mass comes to rest. Determine the coefficient of friction and also the speed as the black return..
|
|
Interfering of sound constructively or destructively
: State whether the sounds interfere constructively or destructively when you are at a distance of 123 m from speaker, 9 m from both speaker, and 9 m from one speaker and 12 m from the other.
|
|
Algorithm to compute-report grade-point average for class
: Compute and report grade-point average for class. Determine the sum of the grades; count number of students; compute average. Determine its algorithm?
|
|
Describing heuristics and bias
: Based upon what you've read and researched; in your stand point, which one of the Heuristics and Bias do you believe is the most commonly used?
|
|
Question about molecular genetics
: Suppose that the genes required for Isoleucine biosynthesis are contained within an operon. If the cell is grown in the presence of high values of isoleucine you would expect to find,
|
|
Ethics in psychological research
: The need for increasing oversight in psychological research is altering as demand for ethical practices and complexities of research are challenged.
|
|
Determining world of psychological research
: In world of psychological research the experiment is highly valued, as it is one of the main processes we can employ to determine cause and effect.
|
|
What is the expected value of information
: The Super Cola Company must decide whether or not to introduce a new diet soft drink. Management feels that if it does introduce the diet soda it will yield a profit of $1 million
|
|
Internal and external threats to validity
: Analyzing the internal and external threats to validity. Can you help me recognize and define those threats that are related to measurement, and the threats that are related to sampling issues.
|