Explain the telome concept.

Describe the characteristics of Rhyniagwynne - vaughani.

Explain the process of development of gametophyte in Pteris.

Draw well labelled diagrams of the following:

i) L.S. of the mature sporophyte of Marchantia

ii) Antheridium in Sphagnum

iii) Mature archegonium of Funaria

iv) Capsule of Funaria

Describe the role of bryophytes as indicators.

Give an account of the importance of lichens.

What is the causal agent of wheat rust? Briefly describe its disease cycle.

Explain the life cycle of Neurospora with the help of a well labelled diagram.

Describe the various uses of algae.

What is heterospory? Describe how it has led to the evolution of seed habit in plants?

Citing examples and making labelled diagrams, explain the isomorphic and heteromorphic alternation of generation.

Describe the Endosymbiont Theory. Write the evidences that support this theory.

List any three merits and any two demerits of Engler and Pranti's system of classification.

Explain industrial melanism with the help of the example of peppered moth, Biston betularia.

Explain how genetic repatterning can occur during isolation.

Describe the mechanisms of speciation.

With the help of an example, explain how interspecific competition results in the evolution of co-adapted communities.

Discuss the sources and expression of variability.

Discuss the role of Cytochrome C in establishing the evolutionary relationship among various species.

Give an account of the geological time scale citing the biological features.