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The effect of natural selection on colonies or population favouring one group in preference to other may be referred to as group selection. A group can be the smallest collection of individuals within a population or a colony. Group selection, it must be understood, is distinct from selection among individuals. The fitness of the genotypes between groups may vary within a population. The concept of altruism can be extended to groups as well. A colony consisting of many altruists has better chances of survival than a colony consisting of selfish individuals. Let us take hypothetical situatioii where individuals of a colony, reproduce indiscriminately having no regard for the carrying capacity of the environment. On the other hand, consider a colony of individuals with genes restricting population growth, utilising optimally the food sources of the environment. The selection would essentially favour the latter group and the former may eventually face extinction.
Q. What is Inflammatory Bowel Disease? Inflammatory bowel disease is a general term used to refer to chronic inflammatory condition of the intestine. It is applied to three con
Q. Vitamins requirement during myocardial infarction? The requirement of vitamins and minerals is largely governed by the existing nutritional status and the clinical parameter
mendal laws
Quick transient responses - Behaviour of Plants Such responses are stimulated by factors showing significant variations over relatively small time period e.g., those showing w
Iron Deficiency Anaemia This is the most common nutritional and haematologic disorder in infancy and chhildhood in developing countries. It is caused by lack of sufficient i
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Define classification of carbohydrates - Polysaccharides? This classification is based on the number of monosaccharide units they contain, Polysaccharides are those polymers of
Wat type of animal is tick and weevil?
Prevention of flap tearing Tearing of a flap is a common complication of the inexperienced surgeon who attempts to perform a procedure using a flap that provides insufficient a
Q. A netlike membranous complex of superposed flat saccules with vesicles detaching from the extremities seen in electronic microscopy. What is the observed structure? What is its
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