Consider the following statements and choose the correct answer:<br>1. Adenine pairs with thymine (A : T) and guanine with cytosine $$\left( {G \vdots C} \right)$$<br>2. Adenine and thymine are joined by three hydrogen bonds through atoms<br>3. Guanine and cytosine are joined by two hydrogen bonds through atoms<br>4. The weak hydrogen bonding enables the two strands of the DNA to separate during replication

Consider the following statements regarding DNA replication and choose the correct answer:
1. The very first requirement of DNA synthesis is the presence of a template or plan along which the new strand is to be constructed
2. The second requirement is of a DNA-dependent-DNA polymerase or simply DNA polymerase enzyme
3. A DNA Pol cannot join two free nucleotides; one of them must be anchored by hydrogen bonds to a DNA strand
4. Replication takes place bidirectionally

A

1, 2, 3 and 4 are true

B

Only 2 and 4 are true

C

Oniy 2, 3 and 4 are true

D

Only 1 and 2 are true

Consider the following statements regarding chain elongation during DNA synthesis and choose the correct answer:
1. The separated strands are kept open by DNA binding proteins (DBPs)
2. A DNA chain is initiated on the 3'- OH end of the primer
3. Okazaki fragments are synthesized on one strand; there is continuous DNA synthesis in the other strand
4. Okazaki fragments are joined by endonuclease

A

1, 2, 3 and 4 are true

B

Only 2, 3 and 4 are true

C

Only 1, 2 and 3 are true

D

Only 1, 3 and 4 are true

Which among the following statements regarding filing Rejoinder/Replication in a suit, as per the Code of Civil Procedure 1908, are correct?
1. Rejoinder/ Replication is filed as a matter of Right
2. Provision of filing Rejoinder/ Replication is contained under Order VIII of the Code of Civil Procedure
3. Rejoinder/Replication may be filed only after due permission of the Court.
4. Rejoinder/Replication is a part of pleading.
Select the correct answer:

A

1, 3 and 4

B

1, 2 and 3

C

2 and 4 only

D

2, 3 and 4

If a + b + c + d = 4, then find the value of $$\frac{1}{{\left( {1 - a} \right)\left( {1 - b} \right)\left( {1 - c} \right)}}$$ + $$\frac{1}{{\left( {1 - b} \right)\left( {1 - c} \right)\left( {1 - d} \right)}}$$ + $$\frac{1}{{\left( {1 - c} \right)\left( {1 - d} \right)\left( {1 - a} \right)}}$$ + $$\frac{1}{{\left( {1 - d} \right)\left( {1 - a} \right)\left( {1 - b} \right)}}$$ is?

A

0

B

5

C

1

D

4

If a + b + c + d = 4, then the value of $$\frac{1}{{\left( {1 - a} \right)\left( {1 - b} \right)\left( {1 - c} \right)}}$$ + $$\frac{1}{{\left( {1 - b} \right)\left( {1 - c} \right)\left( {1 - d} \right)}}$$ + $$\frac{1}{{\left( {1 - c} \right)\left( {1 - d} \right)\left( {1 - a} \right)}}$$ + $$\frac{1}{{\left( {1 - d} \right)\left( {1 - a} \right)\left( {1 - b} \right)}}$$ is?

A

0

B

1

C

4

D

1 + abcd

The number of hydrogen bonds between guanine and cytosine in DNA is

A

2

B

3

C

4

D

1

Consider the following statements regarding satellite DNA and choose the correct answer:
1. Satellite or Repetitive DNA consists of short identical genes which are repeated in tandem several hundred or thousand times
2. Such DNA is found in the region of the chromosome adjacent to the centromere
3. It is easy to separate repetitive DNA by ultracentrifugation

A

Only 1 and 2 are true

B

Only 2 and 3 are true

C

Only 1 and 3 are true

D

1, 2 and 3 are true

Number of hydrogen bonds between adenine and thymine?

A

1

B

2

C

3

D

4

Number of hydrogen bonds between guanine and cytosine?

A

1

B

2

C

3

D

4

Though the right border (RB) and left border (LB) of T-DNA are identical, the DNA transfer is specific for the DNA left of the RB (the T-DNA), rather than for the DNA left of the LB because

A

The sequence context at the RB defines the direction of transfer

B

The sequence context at the LB defines the direction of transfer

C

The nuclear location sequence (NLS) of VirD2 protein drives the excised T-strand

D

The endonuclease activity of VirD2 protein allows nicking at RB