Evolution
Mechanism of evolution - variation (mutation and recombination) and natural selection with examples
Examples of Natural selection is listed below :
⇒ Industrial melanism [adaptation of moth living in industrial areas developing
∗ Peppered moth melanin pigments to match their body to the tree trunks]
(Biston betullaria)
⇒ Resistance of insects to pesticides [Eg : DDT]
⇒ Antibiotic resistance in Bacteria due to random mutation.
⇒ Sickle cell anaemia
⇒ Glucose - 6-phosphate Dehydrogenase deficiency
⇒ Genetic polymorphism [ABO blood group in humans]
Watch this video for the topic from 1:15 to 24:10
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