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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.
Name the location and function of Meibomian glands in the human eye. a) What is cryopreservation? Give its single use. b) Commercial importance of cryopreservation is relate
State about membrane-spanning molecule Neuron A is a healthy neuron with all the usual ion channels and with all the usual intracellular and extracellular distributions of ion
rRNA structure and synthesis assignment
Explain Bone Healing Process in Nutritional Care? Protein is essential for callus formation, calcification and bone healing especially in cases of orthopaedic surgery. The prot
Define Vitamin A, Iron and Zinc required for elderly? Vitamin A, Iron and Zinc: The recommendation for iron is said to decrease in elderly women. Intake of vitamin E and zinc
Q. What is Aortic Enlargement ? Ascending Aorta: The ascending aorta, along with the SVC forms a portion of the right cardiac border on the PA view. After the age of about 40
Illustrate about the Intra-ocular pressure It is the pressure maintained inside the eye above the atmospheric pressure. It is higher than fluid pressure in any other tissue (2-
Shell - body form Protozoans Majority of protozoans posses an exoskeleton in the form of a shell, also called test. The shell forms a loose covering around the body of the ani
What are the methods of foams? There are two basic methods in the formation of foams i.e. a) whipping and b) condensation.
Q. What are the Symptoms of acute pericarditis? Chest Pain Chest pain is the most important symptom. It is retrosternal in location and patient usually locates the site o
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