BBYCT-131 · June 2022 · English
IGNOU BBYCT-131 June 2022 Previous Year Question Paper
Biodiversity (Microbes, Algae, Fungi And Archegoniates)
Structured previous year question paper for BBYCT-131, June 2022 session.
Max marks: 50 · Questions: 12
Verified: 29 Jul 2026
B.Sc. UGC (CBCS)
Term-End Examination
June, 2022
BBYCT-131 : BIODIVERSITY (MICROBES,
ALGAE, FUNGI AND ARCHEGONIATES)
Time : 2 hours Maximum Marks : 50
Note: All questions are compulsory. Marks are indicated
against each question.
Q1.Describe the structure of Tobacco Mosaic Virus with diagrams. Differentiate between RNA and DNA viruses. (2+1+2)
Q2.Describe the mechanisms of genetic recombination in bacteria with suitable diagrams.
Q3.(a) With the help of a suitable diagram, explain the sexual reproduction in Funaria.
(b) Comment on elaters in Marchantia.
Q4.Describe the life cycle in nannandrous species of Oedogonium.
Q5.Describe the important uses of lichens.
Q6.Trace the haploid phase of Puccinia life cycle on the barberry plant.
Q7.Discuss the role of bryophytes as ecological indicators.
Q8.What are different types of gametic fusion in Algae ?
Q9.Define heterospory. What is its biological significance ?
Q10.(a) Trace the development of female gametophyte in Cycas.
(b) Enumerate the medicinal value of Gymnosperms.
Q11.Prepare neat and well-labelled diagrams of any two of the following : 2x5=10
(a) Vertical section of thallus of crustose lichen
(b) An asexual fruiting body of Penicillium
(c) T.S. of needle of Pinus
(d) T.S. of stem of Selaginella
(e) L.S. of mature sporophyte of Marchantia
Q12.frfafad a a fedt a & cee a gamifed fea