Kin and group selection, Biology

Before we proceed to discuss kin selection we should define the term altruism. It refers to the behaviour pattern of an individual in the population for the benefit of other members. Probably genes for altruism regulate the behaviour of such individuals. The local warning signal given by a bird to alert the other members of the flock or a honey bee stinging an intruder in order to defend its hive, are a couple of examples of altruism. In both the instances the altruistic individual may not survive: the signaller may invite the attention of the predator and the  stinging bee usually dies. It should be obvious to you that the death of these individuals would result in the elimination of concerned genes for such behaviour. Critics of Darwin argue that although altruism as a behaviour pattern is an adaptation, the fact that altruists are victims of such behaviour refutes the concept-that natural selection would promote favourable genes in the population.

A British biologist, W.D. Hamilton, effectively theorised that altruism is not an evidence against natural selection and proposed the term kin selection to explain altruistic behaviour. The term kin selection could be equated to natural selection when we are considering the kin or relatives of an individual. For instance a mother expending energy suckling or caring for her children, only ensures the reproductive success of her own genes through her progeny. Kin selection essentially favours such altruistic behaviour when the risk taken or energy spent by an individual is more than compensated by the benefits accrued by the relatives.

Posted Date: 4/6/2013 12:49:29 AM | Location : United States







Related Discussions:- Kin and group selection, Assignment Help, Ask Question on Kin and group selection, Get Answer, Expert's Help, Kin and group selection Discussions

Write discussion on Kin and group selection
Your posts are moderated
Related Questions
Estimation of Depth of Burn Injury: A thermal injury is described as partial thickness or full thickness, depending on the depth  and  severity of tissue damage a) First D

Q. Which structures of the body have more bones for their size than any other part of the body? Hand and wrist have more bones in them for their size than any other part of bod

Define Protective role and Metal chelating ability? Protective role: Nicotinic acid is vital to the normal functioning of the skin intestinal tract and nervous system. It p

POLYMORPHISM IN COLENTRATAtion..

Perception of Light - Floral Induction Stimulus Leaves are found to be organs that perceive light 'stimulus', K.C. Hamner and J. Bonner showed in 1938 that even if all the lea

Determine the reliability of the battery The issue of reliability of the battery has been addressed, with reasonably successful results. Clinical interpretation of the battery

(a) Name the condition and (b) describe the effects of the failure of the pancreas to produce sufficient-insulin. (c) How is this condition treated? .

In the aerials competition in skiing, the competitors speed down a ramp that slopes sharply upward at the end. The sharp upward slope launches them into the air, where they perform

OXIDATION OF PYRUVATE TO ACETYL CoA The oxidation of  pyruvate  to acetyl CoA is  the irreversible route from glycolysis  to the citric acid cycle. What is citric acid cycle?

What is Prokaryotic Gene Expression ? Control of prokaryotic gene expression occurs primarily at the level of transcription. Prokaryotic genes are arranged in units consisting