RNA interference is used to control different viral diseases in case of plants and animals. The active fragment involving in interference is known as

Consider the following statements about Antisense RNA 1. Antisense RNA is a single stranded RNA. 2. Antisense RNA is not related to RNA interference. Which of the above statements is/are correct?

A

Only 1

B

Only 2

C

Both 1 and 2

D

Neither 1 nor 2

Which of the following is/are the advantages of using a control chart for inspection? (i) A control chart indicates whether the process is in control or out of control. (ii) A control chart determines process variability. (iii) A control chart ensures product quality. (iv) Scrap or percentage reduction can be reduced by taking the necessary actions in time against the warnings indicated by control charts. (v) Control charts build up the reputation of the organization through customer’s satisfaction. (vi) The control chart can detect the unusual variations taking place in a process.

A

i, ii, iii only

B

i, iv, v only

C

i, ii, iii, iv, v and vi

D

iv, v and vi

Consider the following statements.
1. The smallest RNA is t RNA.
2. The most abundant RNA of cell is r RNA.
3. DNA can be formed over RNA through reverse transcriptase.
Which of the statements given above are false?

A

1 and 2

B

2 and 3

C

1, 2 and 3

D

None of the above

Which one of the combinations of the following statements is true about antibody structure?
P. Limited proteolysis of rabbit IgG with the enzyme pepsin generates two antigen-binding regions (Fab) and an Fc fragment.
Q. Limited proteolysis of rabbit IgG with the enzyme papain generates a single bivalent antigen-binding region F(ab')₂ and peptide fragments.
R. The Fc fragment of IgG can self-associate and crystallize into a lattice.
S. The F(ab')2 fragment of IgG is composed of both light and heavy chains.

A

P and Q only

B

P and R only

C

R and S only

D

Q and S only

Consider the following statements regarding Lamarckism and choose the correct answer:
1. Lamarck believed that change of form of either plants or animals was due to change in environment
2. Lamarck had the idea that organs of plants and animals are developed according to their urgent need
3. Constant use or exercise of organs results in the formation of new organs or increase in size
4. The living beings both plants and animals produce in nature more offsprings than could ordinarily survive

A

Only 1, 2 and 3 are true

B

Only 1, 3 and 4 are true

C

Only 1, 2 and 4 are true

D

Only 2, 3 and 4 are true

‘RNA interference (RNAi)’ technology has gained popularity in the last few years. Why? 1. It is used in developing gene silencing therapies. 2. It can be used in developing therapies for the treatment of cancer. 3. It can be used to develop hormone replacement therapies. 4. It can be used to produce crop plants that are resistant to viral pathogens. Select the correct answer using the code given below.

A

1, 2 and 4

B

2 and 3

C

1 and 3

D

1 and 4 only

'RNA interference (RNAi)' technology has gained popularity in the last few years. Why? 1. It is used in developing gene silencing therapies 2. It can be used in developing therapies for the treatment of cancer. 3. It can be used to develop hormone replacement therapies. 4. It can be used to produce crop plants that are resistant to viral pathogens. Select the correct answer using the code given below.

A

1, 2 and 4

B

2 and 3

C

1 and 3

D

1 and 4 only

RNA interference (RNAi) technology has gained popularity in the last few years. Why?
1. It is used in developing gene silencing therapies.
2. It can be used in developing therapies for the treatment of cancer.
3. It can be used to develop hormone replacement therapies.
4. It can be used to produce crop plants that are resistant to viral pathogens.
Select the correct answer:

A

1, 2 and 4

B

2 and 3

C

1 and 3

D

1 and 4

Consider the following statements and choose the correct answer:
1. The effects of biotic factors include interactions amongst plants growing in a community, between plants and animals including man and between plants and soil-microorganisms
2. In a densly populated area, one of the most important types of biotic factors influencing vegetation is due to man's multifarious activities - this is noted in farming operations
3. Change or destruction of vegetation by fire is a direct biotic effect due to man's activities
4. In many cases different plant groups, plants and bacteria live in mutual benefit - this is called symbiosis in which each partner derives some benefit from the other

A

Only 1, 2 and 4 are true

B

Only 2, 3 and 4 are true

C

Only 3 and 4 are true

D

1, 2, 3 and 4 are true

Consider the following statements and choose the correct answer:
1. Intense or strong light retards the growth of shoot
2. Shade plants are shorter and stockier than sun plants
3. Shade plants have dense covering of hairs while sun plants are less hairy
4. The stems of shade plants are taIler and more branched than that of sun plants

A

Only 1, 2 and 3 are true

B

Only 2 and 3 are true

C

Only 1 and 4 are true

D

Only 2, 3 and 4 are true

RNA interference is used to control different viral diseases in case of plants and animals. The active fragment involving in interference is known as

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