JLR -09/10
BOTANY

Time: 3 hours
Full Marks: 100
The questions are ofequal value.

Answerany five questions. . Illustrate your answers with diagrams, whereveryou can.
1. Write critical account of any two of the following:

Ultra-structure of cyanophycean cell


Organization of shoot apical meristem in angiosperms


Biogeochemical cydes


2. Describe any two of the following:

Evolution of sporophyte in bryophytes


Reoombinant DNA technology


Xerox succession


. 3. Give explanatory notes on any two of the following:
Cytoplasmic inheritance 05-112 (Tum over)

Genetic recombination in Bacteria


Hexose monophosPhate shunt


4. Give the comprehensive account on any two of the following:

Hutchinson's system of classification


Stelar evolution in pteridophytes


Photorespiration and its significance


5. Explain any two of the following:

Development and types of Tetrasporic Embryo sacs in angiosperms


Parasexuality in fungi


Green house effect


6. Comment on any two of the following:

Heterospory -prerequisite to seed formation


Transpiration -necessary evil


Ginkgo -living fossil


7. Write account on any two ofthe following
Thallus diversity in chlorophyta
05-1/2 Contd.
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