BBYCT131 EM 2023 JAN TO DEC SOLVED ASSIGNMENT

Description

ASSIGNMENT
Course Code: BBYCT-131
Assignment Code: BBYCT-131/TMA/2023
Maximum Marks: 100
Note: Attempt all questions. The marks for each question are indicated
against it.
Marks
1. a) Describe the structure of tobacco mosaic virus with the help of a well
labelled diagram.
b) Write a brief note on the mechanism of conjugation in bacteria.
(5×2=10)
2. Give an exhaustive overview of the economic importance of bacteria. (10)
3. Describe the morphology and mode of reproduction of Polysiphonia with
labelled diagrams.
(10)
4. a) Write a note on blue green algae as a major source of biofertilizer.
b) Describe the structure of basidiocarp of Agaricus with the help of a well
labelled diagram.
(5×2=10)
5. a) How do the bryophytes serve as indicators of pH and pollution?
b) How pteridophytes are different from bryophytes? Discuss.
(5×2=10)
6. a) Explain the mode of reproduction in Equisetum with special reference
to sporangiophore structure.
b) Write a note on glossopodium.
(5×2=10)
7. Describe the structure of root and stem of Pinus. Discuss the importance of
Pinus as a major source of timber.
(5+5=10)
8. a) Discuss the mechanism of Crozier and clamp connection in
Ascomycota and Basidiomycota.
b) What are the symptoms and control measures of early blight of potato?
(5×2=10)
9. a) Describe the different forms of lichen?
b) Give a elaborate account about the significance of lichens.
(5×2=10)
10. Write notes on the following:
i) Algal blooms
ii) Endospore
iii) Petrifaction
iv) Gemma cups