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Natural selection can therefore mean differential reproduction among members of the sarne gene pool. We earlier said that selection would promote those alleles that give rise to phenotypes that are better adapted to a given environment. In other words, the frequencies of 'such alleles would tend to increase and those of ill-adapted ones would tend to decrease. What we are sayingis that natural selection is a matter of changes in gene frequencies. Differential reproduction has a dual role to perform. One it leads to or maintains adaptations and therefore determines whether individuals of a population or species will survive; and two, it is a process which determines what changes will occur in the frequencies of alleles in a gene pool of sexually reproducing individuals.
Q. Symptoms and Complications of atherosclerosis? Symptoms Excessive weight, hypertension, high levels of cholesterol and triglycerides. Complications Myocardia
Define Energy and Protein requirements in geriatric nutrition? Decreased physical activity and changes in body composition and decreased basal metabolic rate affects the ma
What is inflammation? Inflammation is the initial response of the unspecific defense system versus aggressions against the body (the aggressions might be caused by infectious p
a soil surface of 10cm2 may contain what type of hyphae?
about apiculture
What is Iris Coloboma Coloboma is a congenital abnormality due to non-fusion of the embryonic choroidal fissure. It can affect any part of the eye and may involve the optic ner
Define requirements of Vitamin A for infants? As for vitamin A deficiency, requirement of vitamin A is the most easy to meet as it is abundantly present in green and yellow veg
Give an example of how two organisms are interdependent.
Define Observation or Inference for fehling's test? An insoluble reddish brown precipitate of cuprous oxide will be obtained. The reddish brown precipitate indicates the presen
Temperature is one of the important factors affecting the process of growth in bacteria, as it has a bearing on chemical reactions. The temperature at which the maximum growth occu
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