Total No. of Printed Pages 3 Roll No. ............................

1(CCE.M)2 Botany-II



Time Three Hours] [Maximum Marks 300
INSTRUCTIONS


Answers must be written in English.


The number of marks carried by each question is indicated at the end of the question.


The answer to each question or part thereof should begin on a fresh page.

Your answer should be precise and coherent.


The part/parts of the same question must be answered together and should not be interposed between answers to other questions.


Candidates should attempt question nos. 1 and 5 which are compulsory and any three questions more out of the remaining questions, selecting at least one question from each section.


If you encounter any typographical error, please read it as it appears in the text-book.
(viii) Candidates are in their own interest advised to go through the General Instructions on the back side of the title page of the Answer Script for strict adherence.
No continuation sheets shall be provided to any candidate
under any circumstances. EFG-45561 1 Contd.

Candidates shall put a cross on blank pages of Answer Script.


No blank page be left in between answer to various questions.


No programmable Calculator is allowed.
(xiii) No stencil (with different markings) is allowed.


SECTION-A

1. Write notes on any three in about 200 words each

Describe the ultrastructure of Eukaryotic cell.


Polytene chromosomes.


Meiosis as segregational division.


Polyploidy and its role in Agriculture. 3×20=60


2. Give structure of nucleic acids. 30
What are the objectives of plant breeding Distinguish between Pedigree method and Bulk method. 30
3. What is mutation Give its biological significance. 30
Explain the process of organic evolution citing notable evidences. 30
4. Describe the development and use of molecular markers in plant breeding. 30
What is Test of significance Explain the role of z-test, t-test and chi-square test. 30

SECTION-B


CAM pathway as metabolic adaptation


Dormancy of seeds


Plant indicators and Bio-ores


IUCN categories


Growth substances


IPR and Biopatents. 6×10=60


6. Explain the process of Lipid metabolism with special reference of glyoxylate pathway.

Explain the process of anaerobic respiration. Add a note on fermentation.


Give an account of plant movement. 3×20=60


7. Explain the structure and function of extracellular matrix.

Explain the flow of energy in ecosystem.


What is agroforestry Explain its role in sustainable development. 3×20=60


8. Give botanical sources of rubber. Explain the process of manufacture of rubber.

What is biodiversity Explain the steps involved in conservation of biodiversity.


What are botanical sources of essential oils Describe various processes of extraction of essential oils. 3×20=60


5. Write detailed notes on any six of the following

DNA finger printing


Role of RNA in evolution


EFG-45561 2 Contd. EFG-45561 3 400