Group Selection and Altruism

Group selection

Group selection definition It refers to the tendency of most groups of individuals to control their rate of consumption of resources and rate of breeding to ensure that the group would not become extinct. According to this, individuals in successful groups would not act selfishly. Image Source: Researchgate (David Sloan Wilson). Altruism …

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RNA Interference (RNAi)

RNA Interference (RNAi)

RNA interference is a natural phenomenon by which an mRNA is silenced thereby inhibiting the protein coded from that particular mRNA. Scientists have been working on this field from 1990 and finally, two scientists named Andrew Fire and Creg C. Mello shared the Nobel Prize in Physiology or Medicine for their work …

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Amino acids and Proteins

Amino acids and Proteins

Amino acids Proteins are the structural scaffolds of our bodies. At the molecular level whatever function is going on, it is being assisted or done by a protein. Proteins have a wide array of structures and functions, but all proteins are similar when it comes to their building blocks. These are the …

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Somaclonal Variation

Somaclonal Variation

Somaclonal Variation Definition The genetic variations found in the in vitro cultured cells are collectively referred to as somaclonal variations. Selection of somaclones Without in vitro selection: An explant (leaf, stem, root, etc.) is cultured on a suitable medium, supplemented with growth regulators. The unorganized callus and cells do not contain any …

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