Write notes on-(i)Replica plating (ii)Gene flow (iii)Industrial melanism (iv)Allopatric and sympatric speciation (v)Balancing selection (vi)Biological species concept (vii)Evolutionary species concept (viii)Hybrid sterility

Very briefly explain the following : (i) Herbarium (ii) Nucleod (iii) Hyphae (iv) Arrtificial classification (v) Phylogenetic classification (vi) Systematics (vii) Biological classification.

Choose the correct sequence of evolutionary events in one form of allopatric speciation, using the codes given below : (i) Geographical isolation (ii) Ecological isolation (iii) Increased pre-mating reproductive isolation (iv) Increased genetic divergence (v) Selection completed

Write short notes on the following : i. Carbylamine reaction ii. Diazotisation iii . Hofmann bromamide reaction iv.Coupling reaction v. Ammonolusis iv. Acetylation vii. gabriel phthalimide synthesis

The total number of carbonate ores among the following is . (i)Argenitie (ii)Calamine (iii)Malachite (iv)Siderite (v)Galena (vi)Magnetite (vii)Dolomite (viii)Cassiterite (ix)Bauxite