BBYCT135 EM 2023 JAN TO DEC SOLVED ASSIGNMENT

Description

ASSIGNMENT
Course Code: BBYCT-135
Assignment Code: BBYCT-135/TMA/2023
Maximum Marks: 100
Note: Attempt all questions. The marks for each question are indicated against it.
1. Write short notes on the following:
i) Dendrochronology
ii) Statocytes/Statocysts
iii) Microsporogenesis
iv) Histogenesis
v) Stomatal index
(2×5=10)
2. Explain the different theories of root apical organization. (15)
3. Describe three main types of endosperms recognized in angiosperms on the
basis of their mode of development. Support your answer with the help of
well labelled diagram showing the different stages of the development of
endosperm in each types.
(15)
4. Describe any three types of specialized epidermal cells with the help of a
well labelled diagram.
(15)
5. Differentiate between the following:
i) Dicot root and Monocot root
ii) Glandular and Non-glandular trichomes
iii) Amoeboid and Secretory tapetum
iv) Dicotyledonous and Monocotyledonous embryo
v) Calyx and Corolla
(3×5=15)
6. Describe the structure of embryo sac with the help of a well labelled
diagram.
(10)
7. Compare the structures of primary and secondary root. (10)
8. Enlist the categories of xerophytes. Describe the morphological and
anatomical adaptations found in xerophytes.