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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.
There are two distinct methods through that cells synthesize ATP. In oxidative phosphorylation which containing the electron transport chain and the generation of ATP is linke
Q. Define the Glucose Tolerance Test? In Glucose Tolerance Test (GTT) if the blood sample is to be taken in the morning, patient is advised to follow fasting instructions i.e.
Evolution of vertebrates and invertebrates nervous system
Define Standard Titration for estimation of reducing sugar by Fehling Soxhlet Method? Pipette 5 ml of Fehling's A and 5 ml of Fehling B solution into a 100 ml conical flask. Ad
Q. Can you explaon about Aortography? Visualization of the aorta and its branches is possible by several modalities today. Apart from angiography, aorta can also be visualized
Q. Since pepsin is a gastric enzyme does it have a basic or an acid optimum pH? What happens to pepsin when it passes into the duodenum? Pepsin acts contained by the stomach so
Based on your reading of the article "New Life for Ancient DNA" which of the following is a false statement in regards to the comparison among genes in extinct and living species?
Hydropericardium syndrome Hydropericardium syndrome (HPS), known as Leechi disease, is caused by Avian Adenovirus 4. HPS has been responsible for high mortality ranging from 6
Nursing Education Computer-Assisted Instruction (CAI) is a valuable teaching aid for health care students, testing them with frequent quizzes to ensure that the material rea
S n a c k Products Meat snacks such as curls; chips are made from sliced, whole meat and comminuted meat. Extruded snacks are made from meat and non meat ingredients. Extru
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