DBT BET JRF – 2017 Biotechnology JRF Solved Question Paper (PDF) Original / Official Solved Question Paper of DBT BET JRF Examination 2017 with Answer Key (Department of Biotechnology – Biotechnology Eligibility Test – Junior Research Fellowship). You can download this question paper as PDF file for the preparation of your examination. […]
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Different Forms of DNA (A-DNA, B-DNA and Z-DNA) A Comparison Table with PPT
Different Types of DNA Conformations DNA, the genetic information carrier molecule of the cell, is a long polymer of nucleotides and can adopt different types of structural conformations. The various types of conformations that the DNA can adopt depend on different factors such as: 1. Hydration level 2. Salt concentration […]
Continue ReadingTypes of Stelar Systems and its Evolution in Pteridophytes and Higher Plants
Stelar Evolution in Pteridophytes What is stele? What are the components of stele? Ø Stele is the central cylinder or core of vascular tissue in higher plants. Ø The stele consists of xylem, phloem, pericycle and medullary rays and pith if present. Ø The term ‘stele’ was for the first […]
Continue ReadingParasitic Adaptations (Platyhelminthes, Nematodes, Insects and Plants)
Parasitic Adaptations What is meant by Adaptation? Adaptation definition: ‘Any feature of an organism or its part which enables it to exist under conditions of its habitat is called adaptation.’ The adaptations are mainly to withstand the adverse conditions of the environment and to use the maximum benefit of the environment. What are Parasites? A parasite […]
Continue ReadingReceptacular vs Appendicular Theory of Inferior Ovary Development in Flowers
Based on the position of ovary there are three types of flowers- (1) Hypogynous, (2) Perigynous, and (3) Epigynous. (1). Hypogynous Flower: The most primitive type with convex shaped Thalamus (torus). The ovary is superior and all other floral parts (calyx, corolla and androecium) arise from the base of the […]
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