• NCERT Solutions
    • NCERT Library
  • RD Sharma
    • RD Sharma Class 12 Solutions
    • RD Sharma Class 11 Solutions Free PDF Download
    • RD Sharma Class 10 Solutions
    • RD Sharma Class 9 Solutions
    • RD Sharma Class 8 Solutions
    • RD Sharma Class 7 Solutions
    • RD Sharma Class 6 Solutions
  • Class 12
    • Class 12 Science
      • NCERT Solutions for Class 12 Maths
      • NCERT Solutions for Class 12 Physics
      • NCERT Solutions for Class 12 Chemistry
      • NCERT Solutions for Class 12 Biology
      • NCERT Solutions for Class 12 Economics
      • NCERT Solutions for Class 12 Computer Science (Python)
      • NCERT Solutions for Class 12 Computer Science (C++)
      • NCERT Solutions for Class 12 English
      • NCERT Solutions for Class 12 Hindi
    • Class 12 Commerce
      • NCERT Solutions for Class 12 Maths
      • NCERT Solutions for Class 12 Business Studies
      • NCERT Solutions for Class 12 Accountancy
      • NCERT Solutions for Class 12 Micro Economics
      • NCERT Solutions for Class 12 Macro Economics
      • NCERT Solutions for Class 12 Entrepreneurship
    • Class 12 Humanities
      • NCERT Solutions for Class 12 History
      • NCERT Solutions for Class 12 Political Science
      • NCERT Solutions for Class 12 Economics
      • NCERT Solutions for Class 12 Sociology
      • NCERT Solutions for Class 12 Psychology
  • Class 11
    • Class 11 Science
      • NCERT Solutions for Class 11 Maths
      • NCERT Solutions for Class 11 Physics
      • NCERT Solutions for Class 11 Chemistry
      • NCERT Solutions for Class 11 Biology
      • NCERT Solutions for Class 11 Economics
      • NCERT Solutions for Class 11 Computer Science (Python)
      • NCERT Solutions for Class 11 English
      • NCERT Solutions for Class 11 Hindi
    • Class 11 Commerce
      • NCERT Solutions for Class 11 Maths
      • NCERT Solutions for Class 11 Business Studies
      • NCERT Solutions for Class 11 Accountancy
      • NCERT Solutions for Class 11 Economics
      • NCERT Solutions for Class 11 Entrepreneurship
    • Class 11 Humanities
      • NCERT Solutions for Class 11 Psychology
      • NCERT Solutions for Class 11 Political Science
      • NCERT Solutions for Class 11 Economics
      • NCERT Solutions for Class 11 Indian Economic Development
  • Class 10
    • NCERT Solutions for Class 10 Maths
    • NCERT Solutions for Class 10 Science
    • NCERT Solutions for Class 10 Social Science
    • NCERT Solutions for Class 10 English
    • NCERT Solutions For Class 10 Hindi Sanchayan
    • NCERT Solutions For Class 10 Hindi Sparsh
    • NCERT Solutions For Class 10 Hindi Kshitiz
    • NCERT Solutions For Class 10 Hindi Kritika
    • NCERT Solutions for Class 10 Sanskrit
    • NCERT Solutions for Class 10 Foundation of Information Technology
  • Class 9
    • NCERT Solutions for Class 9 Maths
    • NCERT Solutions for Class 9 Science
    • NCERT Solutions for Class 9 Social Science
    • NCERT Solutions for Class 9 English
    • NCERT Solutions for Class 9 Hindi
    • NCERT Solutions for Class 9 Sanskrit
    • NCERT Solutions for Class 9 Foundation of IT
  • CBSE Sample Papers
    • Previous Year Question Papers
    • CBSE Topper Answer Sheet
    • CBSE Sample Papers for Class 12
    • CBSE Sample Papers for Class 11
    • CBSE Sample Papers for Class 10
    • Solved CBSE Sample Papers for Class 9 with Solutions 2024-2025
    • CBSE Sample Papers Class 8
    • CBSE Sample Papers Class 7
    • CBSE Sample Papers Class 6
  • Textbook Solutions
    • Lakhmir Singh
    • Lakhmir Singh Class 10 Physics
    • Lakhmir Singh Class 10 Chemistry
    • Lakhmir Singh Class 10 Biology
    • Lakhmir Singh Class 9 Physics
    • Lakhmir Singh Class 9 Chemistry
    • PS Verma and VK Agarwal Biology Class 9 Solutions
    • Lakhmir Singh Science Class 8 Solutions

Learn CBSE

NCERT Solutions for Class 6, 7, 8, 9, 10, 11 and 12

CBSE Sample Papers for Class 12 Biology Solved 2016 Set 14

January 29, 2017 by Bhagya

CBSE Sample Papers for Class 12 Biology Solved 2016 Set 14

Section A

1.Mention the location and function of Sertoli cells found in human males.

2.Through which linkage a phosphate group is linked to 5′ OH of a nucleoside?

3.Plants need help from the animals for pollination and dispersal, in return of which plants provides nectar, pollens and fruits to the pollinators. Justify this statement with the help of an example.

4.Holes in Swiss cheese are produced by the organism known as Propioni bacterium sharmani. State the reason behind this.

5. Calotropis plants are not grazed by goats and other cattle. Explain.

Section B

6.State the different number of cells found in the following embryonic stages.

(i) Blastocyst (ii) Morula

(iii) Zygote    (iv) Blastomere

7. List the differences between the two different types of seeds on the basis of amount of endosperm.

Or

It is often seen that pollen grains are produced in the enormous quantity in maize. Justify.

8. Select the enzyme used to unwind the DNA strands for the formation of a replication fork.

9. Ravi and his group was impressed by the scientific process of plant tissue culture being explained by their teacher. They got excited and decided to try to grow the plant artificially. Mention any two advantages of this technique.

10. Biomolecules such as DNA and protein does not exhibit biological activity in their anhydrous condition. Explain.

Section C

11. Define ‘floes’ and mention their role in effluent treatment as well as their ultimate fate in the sewage treatment tank.

12. Draw a neat and labelled diagram of a sectional view of human ovary highlighting various stages of follicles growing in it.

13. Nikita was worried about the hike in the prices of the crop food in the market. She asked reason for this to the owner of the super market. He told her prices are such high because these are genetically modified crops. What according to you are the GM Crops? Are they much beneficial for human health? If yes, give reasons.

14. DNA, a nucleic acid found in human beings and many other organisms is considered to be more stable genetic material than RNA found mainly in viruses etc. Justify.

15. (i) List any two situations, when a medical doctor would recommend injection of

pre-formed antibodies into the body of a patient. Name this kind of immunisation and mention its advantages.

  • Name the kind of immunity attained when instead of antibodies, weakened antigens are introduced into the body.

Or

  • What are primary lymphoid organs present in humans?
  • Explain the functions of lymphoid organs.

16. Ecology itself tells about the interactions among different organisms and its physical environment.

Different levels of organisations thus, combined together to form complete  ecology. Mention four different levels of organisation concerned with ecology in detail.

17. Write short notes on the following

(i) Effect of scarcity of water on adaptations of animals.

(ii) Adaptations of desert plants and animals.

(iii) Importance of light to plants.

(iv) Smaller animals are rarely seen in polar regions.

(v) Behavioural adaptations in animals

  1. (i) Both grasshopper and Drosophilla said to show the phenomenon of male  heterogamety? Justify with a cross.

(ii) Define female heterogamety with the help of examples.

19. Anthropogenic action can hasten the evolution. Explain with the help of a  suitable example.

20. Can you suggest a method to remove oil (hydrocarbon) from seeds based on your  understanding of rDNA technology and chemistry of oil?

21. The Mediterranean Orchid, Ophyrs employs sexually deceit to get its flower pollinated. Explain the statement given.

22. The length of a food chain in an ecosystem is generally limited to 3-4 trophic levels. Justify the statement with a suitable example.

Section D

23. Two generations of Ankita’s family were the carriers of an autosmal linked disorder called haemophilia. Ankita was disturbed about her brother’s wife as she was planning to conceive a baby. Suggest a way to Ankita and her family so that they can find out whether the coming child may also become be a sufferer of the disease or not. Also give the importance of such analysis.

Section E

24.How does a breeder ensures the process of cross pollination in economically important bisexual flower?

Or

Continuous self pollination results in inbreeding depression in plants. Describe any three devices by which cross pollination is encouraged by nature.

25. Draw a labelled diagram of an anther lobe at microspore mother cell stage. Mention the role of different wall layers of anther.

Or

State the different stages of orgenesis in humans starting from foetal life till its completion. When and where in the body is orgenesis completed?

26.(i) Process of DNA replication occurs in small replication forks, not in its entire length. Give reason.

  • State the importance of the origin of replication in a fork.
  • Replication of DNA is never continuous along the length of the replication fork, it moves continuously and discontinuously both. Justify the statement.

Or

  • EcoRI is a restriction endonuclease. How is it named so? Explain.
  • Write the sequences of DNA bases that the enzyme recognizes. Mention the point at which the enzyme makes a cut in the DNA segment.

(Download Questions PDF)

[gview file=”https://resultscareer.files.wordpress.com/2015/12/cbse-sample-papers-for-class-12-sa2-biology-solved-2016-set-14-questions.pdf”]

Filed Under: CBSE

LearnCBSE.in Student Education Loan
  • Student Nutrition - How Does This Effect Studies
  • Words by Length
  • NEET MCQ
  • Factoring Calculator
  • Rational Numbers
  • CGPA Calculator
  • TOP Universities in India
  • TOP Engineering Colleges in India
  • TOP Pharmacy Colleges in India
  • Coding for Kids
  • Math Riddles for Kids with Answers
  • General Knowledge for Kids
  • General Knowledge
  • Scholarships for Students
  • NSP - National Scholarip Portal
  • Class 12 Maths NCERT Solutions
  • Class 11 Maths NCERT Solutions
  • NCERT Solutions for Class 10 Maths
  • NCERT Solutions for Class 9 Maths
  • NCERT Solutions for Class 8 Maths
  • NCERT Solutions for Class 7 Maths
  • NCERT Solutions for Class 6 Maths
  • NCERT Solutions for Class 6 Science
  • NCERT Solutions for Class 7 Science
  • NCERT Solutions for Class 8 Science
  • NCERT Solutions for Class 9 Science
  • NCERT Solutions for Class 10 Science
  • NCERT Solutions for Class 11 Physics
  • NCERT Solutions for Class 11 Chemistry
  • NCERT Solutions for Class 12 Physics
  • NCERT Solutions for Class 12 Chemistry
  • NCERT Solutions for Class 10 Science Chapter 1
  • NCERT Solutions for Class 10 Science Chapter 2
  • Metals and Nonmetals Class 10
  • carbon and its compounds class 10
  • Periodic Classification of Elements Class 10
  • Life Process Class 10
  • NCERT Solutions for Class 10 Science Chapter 7
  • NCERT Solutions for Class 10 Science Chapter 8
  • NCERT Solutions for Class 10 Science Chapter 9
  • NCERT Solutions for Class 10 Science Chapter 10
  • NCERT Solutions for Class 10 Science Chapter 11
  • NCERT Solutions for Class 10 Science Chapter 12
  • NCERT Solutions for Class 10 Science Chapter 13
  • NCERT Solutions for Class 10 Science Chapter 14
  • NCERT Solutions for Class 10 Science Chapter 15
  • NCERT Solutions for Class 10 Science Chapter 16

Free Resources

RD Sharma Class 12 Solutions RD Sharma Class 11
RD Sharma Class 10 RD Sharma Class 9
RD Sharma Class 8 RD Sharma Class 7
CBSE Previous Year Question Papers Class 12 CBSE Previous Year Question Papers Class 10
NCERT Books Maths Formulas
CBSE Sample Papers Vedic Maths
NCERT Library

NCERT Solutions

NCERT Solutions for Class 10
NCERT Solutions for Class 9
NCERT Solutions for Class 8
NCERT Solutions for Class 7
NCERT Solutions for Class 6
NCERT Solutions for Class 5
NCERT Solutions for Class 4
NCERT Solutions for Class 3
NCERT Solutions for Class 2
NCERT Solutions for Class 1

Quick Resources

English Grammar Hindi Grammar
Textbook Solutions Maths NCERT Solutions
Science NCERT Solutions Social Science NCERT Solutions
English Solutions Hindi NCERT Solutions
NCERT Exemplar Problems Engineering Entrance Exams
Like us on Facebook Follow us on Twitter
Watch Youtube Videos NCERT Solutions App