BBYCT-131 EM 2025 SOLVED ASSIGNMENT

Description

Bachelor’s Degree Programme
(BSCG)
Biodiversity (Microbes, Algae, Fungi and Archegoniates)
Valid from 1st January, 2025 to 31st December, 2025
ASSIGNMENT
Course Code: BBYCT-131
Assignment Code: BBYCT-131/TMA/2025
Maximum Marks: 100
Note: Attempt all questions. The marks for each question are indicated
against it.
1.
2.
3.
4.
5.
6.
7.
8.
a) Give a brief account on lytic or lysogenic replication in viruses with
suitable diagrams.
b) Discuss the role of bryophytes as ecological indicators
a) Define heterospory. What is its biological significance?
b) List the mechanisms of genetic exchange in bacteria and describe any
one of them in detail.
a) Trace the development of female gametophytes in Cycas.
b) Enumerate the medical value of Gymnosperms.
Differentiate between the following pairs of terms:
i)
ii)
iii)
Bacterial cell and Archaeal cell
Liverworts and Mosses
Transformation and Transduction
iv) Petrifaction and Compression
Prepare clear and well-labelled diagrams of the following:
i)
ii)
iii)
iv)
Clamp connection formation in Basidiomycetes.
V.S. thallus through a gemma cup in Marchantia.
T.S. needle of Pinus.
L.S. microsporangium of Selaginella.
a) Describe the internal and external structure of a typical bacterium.
b) Differentiate a bacterial cell from an archaeal cell.
a) Discuss different types of steles found in pteridophytes along with
suitable diagrams.
b) Briefly describe the economic importance of Pteriodophytes or
Gynosperms.
Prepare a detailed account of occurrence, morphology and ultrastructure in
Cyanophyta.
(5×2=10)
(5×2=10)
(5×2=10)
(4×2 ½ =10)
(4×2½ =10)
(5×2=10)
(5×2=10)
(10)
3

9.
Define the transformation. How Griffith’s experiment was carried out to
(10)
discover bacterial transformation?
10.
Write notes on the following:
i)
ii)
iii)
Biofertilizer
Polyembryony in gymnosperms
Alternation of generations
iv) Coralloid roots of Cycas
(2 ½×4=10) ————————————————XXXXXXXXXX————————————————-