Exam (elaborations)
NCERT Solutions for Class 12 Biology Chapter 11
- Course
- Institution
NCERT Solutions for Class 12 Biology Chapter 11
[Show more]
Seller
Follow
Hkane
Reviews received
Content preview
BIOTECHNOLOGY PRINCIPLES AND PROCESSES 75CHAPTER 11
B IOTECHNOLOGY : P RINCIPLES
AND PROCESSES
MULTIPLE-CHOICE QUESTIONS
1. Rising of dough is due to:
a. Multiplication of yeast
b. Production of CO2
c. Emulsification
d. Hydrolysis of wheat flour starch into sugars.
2. An enzyme catalysing the removal of nucleotides from the ends of
DNA is:
a. endonuclease
b. exonuclease
c. DNA ligase
d. Hind - II
3. The transfer of genetic material from one bacterium to another through
the mediation of a vector like virus is termed as:
a. Transduction
b. Conjugation
c. Transformation
d. Translation
4. Which of the given statement is correct in the context of observing DNA
separated by agarose gel electrophoresis?
a. DNA can be seen in visible light
b. DNA can be seen without staining in visible light
c. Ethidium bromide stained DNA can be seen in visible light
d. Ethidium bromide stained DNA can be seen under exposure to
UV light
, 76 BIOLOGY, EXEMPLAR PROBLEMS
5. 'Restriction' in Restriction enzyme refers to:
a. Cleaving of phosphodiester bond in DNA by the enzyme
b. Cutting of DNA at specific position only
c. Prevention of the multiplication of bacteriophage in bacteria
d. All of the above
6. A recombinant DNA molecule can be produced in the absence of the
following:
a. Restriction endonuclease
b. DNA ligase
c. DNA fragments
d. E.coli
7. In agarose gel electrophoresis, DNA molecules are separated on the basis
of their:
a. Charge only
b. Size only
c. Charge to size ratio
d. All of the above
8. The most important feature in a plasmid to be used as a vector is:
a. Origin of replication (ori)
b. Presence of a selectable marker
c. Presence of sites for restriction endonuclease
d. Its size
9. While isolating DNA from bacteria, which of the following enzymes is not
used?
a. Lysozyme
b. Ribonuclease
c. Deoxyribonuclease
d. Protease
10. Which of the following has popularised the PCR (polymerase chain
reactions)?
a. Easy availability of DNA template
b. Availability of synthetic primers
c. Availability of cheap deoxyribonucleotides
d. Availability of 'Thermostable' DNA polymerase
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Hkane. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
80202 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now