The statistical frequency of the occurrence of a particular restriction enzyme cleavage site that is 6 bases long can be estimated to be

Consider the following statements and choose the correct answer:
In order to be a useful vector, a plasmid:
1. Must possess the genes essential for replication of DNA
2. Must carry, at least, one gene that can be used as a marker for the selection of the plasmid in the transformed cell
3. Must include, at least, one gene recognizable by its product or activity, which possesses within it a cutting site for a restriction enzyme
4. In the rep region must contain a cutting site for the restriction enzyme to be used

A

Only 1, 2 and 3 are true

B

1, 2, 3 and 4 are true

C

Only 3 and 4 are true

D

Only 2 and 4 are true

The restriction endonuclease HaeIII recognizes the sequence GG^↓CC and the point of cleavage is given by the arrow. If you want to clone a piece of DNA in a plasmid digested by HaeIII, what will be restriction enzyme of choice

A

SmaII (CC^↓GGG)

B

NotI (GC^↓GGCCGC)

C

SalmIII (GG^↓CC)

D

PstI (CTGCA^↓G)

Restriction site can also be introduced by oligonucleotide directed mutagenesis of a region that is _______ and ______ to the original restriction site.

A

not only similar, also exactly same

B

similar, not same

C

not similar, is entirely different

D

different, near

In the case of deletion of a restriction site, it should be cleaved with the same restriction enzyme.

A

True

B

False

A restriction enzyme AluI with a 4-bp recognition site produces restriction fragments that should be

A

4096 bp

B

256 bp

C

16 bp

D

436 bp

Which set of the following events occurs during the elongation step of translation?
P. Attachment of mRNA with the smaller subunit of ribosome
Q. Loading of correct aminoacyl-tRNA into the A site.
R. Formation of a peptide bond between the amino acyl-tRNA in the A site and the peptide chain that is attached to the peptidyl-tRNA in the P site.
S. Dissociation of the ribosomal subunits.
T. Translocation of peptidyl-tRNA from the A site to the P site of the ribosome.

A

P, Q and R

B

P, Q and T

C

Q, R and T

D

R, S and T

Which of the following statements relating to the sampling theory are correct?
1. The values of the statistical measures based on the sampled units are called values of statistics.
2. In the simple random sampling technique, the element of the population and the unit of the sample are different.
3. Snow-ball sampling technique is a probability based sampling technique.
4. The 'law of statistical regularity' and the 'law of inertia of large numbers' are the main bases of the sample to become representative of the population.
Choose the correct answer:

A

Both 2 and 3

B

Both 1 and 4

C

1, 2 and 3

D

2, 3 and 4

Which of the following type of restriction enzyme does not require ATP for cleavage?

A

Type I

B

Type II

C

Type III

D

Type IV

Consider the Assertion (A) and Reason (R) and select the correct answer:
Assertion (A) If one premise is particular, the conclusion must be particular.
Reason (R) (i) An affirmative particular has no distributed terms, and a negative particular has an only one.
(ii) The premises cannot both be particular and thus must differ in quantity.

A

A and R both are true but R (i) and (ii) correct explanations of A

B

A and R both are true but R (i) is correct explanation of A

C

A and R both are true but R (ii) is a correct explanation of A

D

A is true, but R (i) and (ii) are incorrect explanations of A

A piston containing an ideal gas is originally in the state X (see figure). The gas is taken through a thermal cycle X → Y → X as shown
Thermodynamics and Statistical Physics mcq question image

Thermodynamics and Statistical Physics mcq question image

The work done by the gas is positive, if the direction of the thermal cycle is

A

clockwise

B

counter-clockwise

C

neither clockwise nor counter-clockwise

D

clockwise from X → Y and counter-clockwise from Y → X

The statistical frequency of the occurrence of a particular restriction enzyme cleavage site that is 6 bases long can be estimated to be

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