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Q. No.Pathogenic bacteria gain resistance to antibiotics due to changes in their:
1. Cosmids
2. Plasmids
3. Nucleus
4. Nucleoid
Subtopic: Cloning Vector |
85%
Level 1: 80%+
NEET - 2022
Hints
Which of the following methods is not used, commonly, for introducing foreign DNA into the plant cell?
1. Agrobacterium mediated transformation
2. Gene gun
3. 'Disarmed pathogen' vectors
4. Bacteriophages
1. Agrobacterium mediated transformation
2. Gene gun
3. 'Disarmed pathogen' vectors
4. Bacteriophages
Subtopic: Transforming Plant & Animal Cell |
59%
Level 3: 35%-60%
NEET - 2022
Hints
Refer to the following statements for agarose-gel electrophoresis:
Choose the most appropriate answer from the options given below :
| (a) | Agarose is a natural polymer obtained from sea-weed. |
| (b) | The separation of DNA molecules in agarose-gel electrophoresis depends on the size of DNA. |
| (c) | The DNA migrates from negatively-charged electrode to the positively-charged electrode. |
| (d) | The DNA migrates from positively-charged electrode to the negatively-charged electrode. |
| 1. | (a) and (b) only | 2. | (a), (b) and (c) only |
| 3. | (a), (b) and (d) only | 4. | (b), (c) and (d) only |
Subtopic: Separation and Isolation of DNA fragments |
83%
Level 1: 80%+
NEET - 2022
Hints
Pathogenic bacteria gain resistance to antibiotics due to changes in their :
| 1. | Cosmids | 2. | Plasmids |
| 3. | Nucleus | 4. | Nucleoid |
Subtopic: Process of Biotech |
89%
Level 1: 80%+
NEET - 2022
Hints
Complete the analogy with respect to the method of gene transfer and the most suitable host cell for it
Microinjection : Animal cell :: Biolistics:______
Select the correct option:
1. Bacteria
2. Plant cell
3. Bacteriophage
4. Fungal cell
Microinjection : Animal cell :: Biolistics:______
Select the correct option:
1. Bacteria
2. Plant cell
3. Bacteriophage
4. Fungal cell
Subtopic: Transforming Plant & Animal Cell |
93%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Read the following statements and choose the correct option.
| Statement (A): | In gel electrophoresis, the most commonly used matrix is agar. |
| Statement (B): | Agar is a natural polymer extracted from sea weeds. |
| 1. | Both statements (A) and (B) are correct |
| 2. | Both statements (A) and (B) are incorrect |
| 3. | Only statement (A) is correct |
| 4. | Only statement (B) is correct |
Subtopic: Separation and Isolation of DNA fragments |
Level 4: Below 35%
Hints
How many statements given below are correct with respect to plasmids?
Select the correct option.
1. Three
2. Four
3. Two
4. One
| a. | They float freely in the cytoplasm of certain bacterial cells. |
| b. | They have the ability to replicate, independent of the genomic DNA. |
| c. | Herbert Boyer developed a method of removing and reinserting them in the cells. |
| d. | They are circular ssDNA molecules. |
1. Three
2. Four
3. Two
4. One
Subtopic: Introduction & History |
Level 3: 35%-60%
Hints
Which of the following can act as selectable markers in a cloning vector?
a. ampR
b. tetR
c. ori
d. rop
Select the correct option.
1. (a) and (b)
2. (c) and (d)
3. (a), (c) and (d)
4. (a), (b), (c) and (d)
a. ampR
b. tetR
c. ori
d. rop
Select the correct option.
1. (a) and (b)
2. (c) and (d)
3. (a), (c) and (d)
4. (a), (b), (c) and (d)
Subtopic: Cloning Vector |
86%
Level 1: 80%+
Hints
A mixture containing DNA fragments, p, q, r and s with size of p + r = q, p > r and s > q, was subjected to agarose gel electrophoresis. The positions of these fragments from cathode to anode sides of the gel would be
1. q, s, p, r
2. s, q, p, r
3. r, p, q, s
4. p, r, s, q
1. q, s, p, r
2. s, q, p, r
3. r, p, q, s
4. p, r, s, q
Subtopic: Separation and Isolation of DNA fragments |
67%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
Match column-I with column-II and choose the correct option.
1. a(ii), b(iii), c(iv), d(i)
2. a(ii), b(i), c(iii), d(iv)
3. a(i), b(ii), c(iii), d(iv)
4. a(ii), b(i), c(iv), d(iii)
| Column-I | Column-II | ||
| 1. | Reverse transcriptase | (i) | Forms phosphodiester bonds |
| 2. | Taq polymerase | (ii) | cDNA library |
| 3. | Alkaline phosphatase | (iii) | Breaks phosphodiester bonds |
| 4. | Restriction endonuclease | (iv) | Used in ELISA |
1. a(ii), b(iii), c(iv), d(i)
2. a(ii), b(i), c(iii), d(iv)
3. a(i), b(ii), c(iii), d(iv)
4. a(ii), b(i), c(iv), d(iii)
Subtopic: Tools |
70%
Level 2: 60%+
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