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Read the following statements (i) Prim...

Read the following statements
(i) Primers used in PCR are small chemically synthesised oligosaccharides
(ii) E. coli is closely related to Salmonella
(iii) There are 3 basic steps in genetically modifying an organism
(iv) The techniques of the genetic engineering overcome the limitation of traditional hybridisation procedures.
In these statements how many are correct

A

4

B

3

C

1

D

2

Text Solution

Verified by Experts

The correct Answer is:
B
ii, iii and iv are correct
`**` Primers used in PCR are small chemically synthesised oligosnucleotides.
`**` There are three basic steps in genetically modifying an organism
(i) Identification of DNA with desirable genes:
(ii) introduction of the identified DNA into the host,
(iii) maintenance of introduced DNA in the host and transfer of the DNA to its progeny.
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A2Z-BIOTECHNOLOGY: PRINCIPLES AND PROCESSES-Section A: Topicwise Questions (topic 4: Amplification Of Gene Of Interest Using Pcr) Insertion Of R
  1. Which has the ability to transform normal cells into cancerous cell ?

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  2. Which is used as a cloning vecotr into plants ?

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  3. Which of the following statements is/are correct about heat shock

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  4. Which of the following steps are catalysed by Taq polymerase in a PCR ...

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  5. Significance of 'heat shock' method in bacterial transformation is to ...

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  6. Small chemically synthesised oligonucleotides that are complementary t...

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  7. Which of the following has popularised the PCR ?

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  8. Select the correct statement(s)

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  9. Select the correct statement(s)

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  10. Read the following statements (i) Primers used in PCR are small chem...

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  11. DNA polymerase enzyme used in PCR is isolated from

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  12. Thermostable enzymes 'Taq and Pfu' isolated from thermophilic bacteria...

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  13. Which is correctly matched?

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  14. Gene amplification using primers can be done by :

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  15. PCR proceeds in three distinct steps governed by temperature they are ...

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  16. Enzyme required for polymerase chain reaction (PCR) is

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  17. PCR technique was invented by

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  18. The source of Taq polymerase used in PCR is a :

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  19. Polymerase chain reaction employ

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  20. Polymerase chain reaction is most useful in

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