8. Write the Botanical names, Systematic position and economic importance of the following

Turmeric


Black pepper


Emblica


Tea


Beet root


Jute


Bajra


Safflower


Rubber


Sugar cane. 10×6=60


HRI-28383 4 600
Total No. of Printed Pages 4 Roll No. ............................

1[CCE.M]1 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 answers 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.

HRI-28383 1 Contd.

No continuation sheets shall be provided to any candidate under any circumstances.


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


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



SECTION-A

1. Write notes on any six of the following

Gene expression


Prokaryotic cell


Metaphase


Golgi complex


Structural variations in chromosome


Copy choice theory


One gene one polypeptide concept


Southern blotting. 6×10=60



2. Describe the structure and function of Plasma membrane.

Write a comparative account of replication of DNA in Prokaryotes and Eukaryotes.


Describe the morphology and chemical composition of interphase nucleus. 3×20=60



3. What are chromosomal aberrations and how do they arise

What are Transposons Write an essay about different types of transposons and their significance.


What are polyploids Write an essay on polyploids with reference to Mutations. 3×20=60



4. Write an account of cyclic and non-cyclic electron transport in light phase and explain how ATP is formed in the light phase.

Write an essay on Glycolysis or describe EMP pathway.


Give a brief account of biological nitrogen fixation. 3×20=60



SECTION-B

5. Write notes on any six of the following

Photorespiration


Afforestation


Vernalization


Ozone layer depletion


Seed Dormancy


Translation of RNA


SAT Chromosome


Eutrophication. 6×10=60



6. Describe Growth Substance and explain its role and applications in agri-horticulture.

Define Photoperiodism. Discuss the phenomenon with reference to short day and long day plants.


What are macro nutrients Describe their role in plants. 3×20=60



7. Make a list of Drug Yielding plants of India and the various ways these are utilized.

Define xerophytes and explain briefly xerophytes along with their survival mechanisms.


Describe any two important Biodiesel plant. 3×20=60



HRI-28383 2 Contd. HRI-28383 3 Contd.