The Species-Area Hypothesis Large areas contain more species than small areas because they can support larger populations and a greater range of habitats.

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#Id: 7230

#Unit 5. Developmental Biology

Three signals are required for activation of a naïve T cell

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#Id: 9631

#Unit 4. Cell Communication and Cell Signaling

Monomeric Ras protein 

(∼170 amino acids) belongs to the GTPase superfamily of

intracellular switch proteins

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#Id: 8502

#Unit 1. Molecules and their Interaction Relevant to Biology

Proteins are made of either single domain or multiple domains. Domains can be classified into more than 800 groups but by simple classification can be done into 4 classes. Each domain is combination of motifs / super secondary structures. Like domains, many super secondary structures can exists independently in solution. They can act as nucleation in protein folding. 

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#Id: 10229

#Unit 6. System Physiology – Plant

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#Id: 5517

#Unit 10. Ecological Principles

Biotic potential / Intrinsic rate of natural increase (r) It is the inherent power of a population to grow and reproduce when environmental conditions are favorable, and resources are unlimited.