CS. E-Mains 2000: Botany
Paper-I
Section A

Answer any three of the following in not more than 200 words each

Describe the sexual reproduction in Equisetum.

Write the different types of genetic recombination found in bacteria.

With the help of suitable diagram describe the saprophyte of Funaria.

Describe the life cycle of Penicillium.

Give the causal organism, symptoms and control measures of the following

Peach leaf curl

Tikka disease of groundnut

Little leaf of brinjal

Describe the life cycle of Polysiphonia in detail.

Write notes on

Fungal toxins

Methods of producing somatic hybrids and their application

Section B

Answer any three of the following in not more than 200 words each

Anomalous secondary growth in monocot stem

Applications of palynology

Polyembryony

Different kinds of female gametophyte found in angiosperms

Write an account of the floral structure of the following families

Poaceae

Ascelpiadaceae

Brassicaceae

Give botanical names of three importance plant species belonging to each of the three families and specify their uses.

Describe the development of male gametophyte in Pin us. Discuss the economic importance of this genus.

Answer the following questions

Mention the botanical names and families of ten important drug yielding plants, source from plant parts and the uses of these drugs in human welfare.

Discuss the importance of ethno botany in India.