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Balbharati solutions for Biology 12th Standard HSC for Maharashtra State Board chapter 12 - Biotechnology [Latest edition]

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Balbharati solutions for Biology 12th Standard HSC for Maharashtra State Board chapter 12 - Biotechnology - Shaalaa.com
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Chapter 12: Biotechnology

Exercises
Exercises [Pages 291 - 292]

Balbharati solutions for Biology 12th Standard HSC for Maharashtra State Board Chapter 12 Biotechnology Exercises [Pages 291 - 292]

Choose the correct option

Exercises | Q 1.1 | Page 291

The bacterium which causes a plant disease called crown gall is _______________.

  • Helicobacter pylori

  • Agrobacterium tumifaciens

  • Thermophilus aquaticus

  • Bacillus thuringienesis

Exercises | Q 1.2 | Page 291

The enzyme nuclease hydrolyses _____________ of polynucleotide chain of DNA.

  • hydrogen bonds

  • phosphodiester bonds

  • glycosidic bonds

  • peptide bonds

Exercises | Q 1.3 | Page 291

In vitro amplification of DNA or RNA segment is known as ___________.

  • chromatography

  • Southern blotting

  • polymerase chain reaction

  • gel electrophoresis

Exercises | Q 1.4 | Page 291

Which of the following is the correct recognition sequence of restriction enzyme hind III?

  • 5'---A-A-G-C-T-T---3'
    3'
    ---T-T-C-G-A-A---5'

  • 5'---G-A-A-T-T-C---3'
    3'
    ---C-T-T-A-A-G---5'

  • 5'---C-G-A-T-T-C---3'
    3'
    ---G-C-T-A-A-G---5'

  • 5'---G-G-C-C---3'
    3'
    ---C-C-G-G---5'

Exercises | Q 1.5 | Page 291

Recombinant protein .................. is used to dissolve blood clots present in the body.

  • insulin

  • tissue plasminogen activator

  • relaxin

  • erythropoietin

Exercises | Q 1.6 | Page 291

The recognition sequence of restriction enzymes is generally __________ nucleotide long.

  • 2 to 4

  • 4 to 8

  • 8 to 10

  • 14 to 18

Very short answer type question

Exercises | Q 2.1 | Page 291

Name the vector which is used in the production of human insulin through recombinant DNA technology.

Exercises | Q 2.2 | Page 291

Which cells from Langerhans of the pancreas do produce a peptide hormone insulin?

Exercises | Q 2.3 | Page 291

Give the role of Ca++ ions in the transfer of the recombinant vector into the bacterial host cells.

Exercises | Q 2.4 | Page 291

Expand the following acronym which is used in the field of protechnology.

YAC

Exercises | Q 2.4 | Page 291

Expand the following acronym which is used in the field of protechnology.

RE

Exercises | Q 2.4 | Page 291

Expand the following acronym which is used in the field of protechnology.

dNTP

Exercises | Q 2.4 | Page 291

Expand the following acronym which is used in the field of protechnology.

PCR

Exercises | Q 2.4 | Page 291

Expand the following acronym which is used in the field of protechnology.

GMO

Exercises | Q 2.4 | Page 291

Expand the following acronym which is used in the field of protechnology.

MAC

Exercises | Q 2.5 | Page 291

Fill in the blanks and complete the chart.

GMO Purpose
i. Bt cotton ____________
ii. _____________ Delay the softening of tomato during ripening.
iii. Golden rice

____________

iv. Holstein cow ____________

Short answer type question

Exercises | Q 3.1 | Page 291

Explain the properties of a good or ideal cloning vector for rDNA technology.

Exercises | Q 3.2 | Page 291

A PCR machine can raise the temperature up to 100°C but after that, it is not able to lower the temperature below 70°C automatically. Which step of PCR will be hampered first in this faulty machine? Explain why?

Exercises | Q 3.3 | Page 291

In the process of rDNA technology, if two separate restriction enzymes are used to cut vector and donor DNA then which problem will arise in the formation of rDNA or chimeric DNA? Explain.

Exercises | Q 3.4 | Page 292

Match and write the pairs.

Recombinant protein It’s used in or for
i. platelet-derived growth factor a. Anemia
ii. α-antitrypsin b. cystic fibrosis
iii. Relaxin c. Haemophilia A
iv. Erythropoietin d. Diabetes
v. Factor VIII e. Emphysema
vi. DNase f. Parturition
  g. Atherosclerosis

Long answer type question

Exercises | Q 4.1 | Page 292

Define and explain the term

Biopiracy

Exercises | Q 4.1 | Page 292

Define and explain the term

Biopatent

Exercises | Q 4.1 | Page 292

Define and explain the term

Bioethics

Exercises | Q 4.2 | Page 292

Explain the steps in process of rDNA technology with suitable diagrams.

Exercises | Q 4.3 | Page 292

Explain the gene therapy.

Exercises | Q 4.3 | Page 292

Give two types of gene therapy.

Exercises | Q 4.4 | Page 292

How are the transgenic mice used in cancer research?

Exercises | Q 4.5 | Page 292

Give the steps in PCR or polymerase chain reaction with suitable diagrams.

Exercises | Q 4.6 | Page 292

What is a vaccine?

Exercises | Q 4.6 | Page 292

Give advantages of oral vaccines or edible vaccines.

Exercises | Q 4.7 | Page 292

Enlist different types of restriction enzymes commonly used in rDNA technology? Write about their role.

Exercises | Q 4.8 | Page 292

Enlist and write in brief about the different biological tools required in rDNA technology.

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Chapter 12: Biotechnology

Exercises
Balbharati solutions for Biology 12th Standard HSC for Maharashtra State Board chapter 12 - Biotechnology - Shaalaa.com

Balbharati solutions for Biology 12th Standard HSC for Maharashtra State Board chapter 12 - Biotechnology

Balbharati solutions for Biology 12th Standard HSC for Maharashtra State Board chapter 12 (Biotechnology) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Maharashtra State Board Biology 12th Standard HSC for Maharashtra State Board solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Balbharati textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Biology 12th Standard HSC for Maharashtra State Board chapter 12 Biotechnology are Biotechnology, Process and Principles of Biotechnology, Methodology for rDNA Technology, Commercial Applications of Biotechnology, Bioethics, Effects of Biotechnology, Biopatent and Biopiracy, Process and Principles of Biotechnology.

Using Balbharati 12th Board Exam solutions Biotechnology exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Balbharati Solutions are important questions that can be asked in the final exam. Maximum students of Maharashtra State Board 12th Board Exam prefer Balbharati Textbook Solutions to score more in exam.

Get the free view of chapter 12 Biotechnology 12th Board Exam extra questions for Biology 12th Standard HSC for Maharashtra State Board and can use Shaalaa.com to keep it handy for your exam preparation

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