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Peripatric Speciation
Speciation by small populations isolated on the periphery of the distribution of the parent population can be described as peripatric speciation. Small, peripheral populations occupy ecdlogical niches not occupied by parental population and these founder populations can carry only a small part of the genetic variability of the parent population. Origin of species by peripatric speciation can be explained as follows: Initially species consists of uniformly distributed individuals. The individuals are grouped as populations between which there is a limited gene flow. This gene flow keeps the populations as an integrated species. As long as there is a free flow of genes, even if it were to be limited, a new species cannot be formed.
To test the effects of temperature on the activity of yeast Make up a quantity of bread dough .Stir a yeast cake in water and methodically mix the yeast with the dough. Divide
It is IgG mediated cytotoxic hypersensitivity. Typical manifestations contain erythroblastosis fetalis, hemolytic anemia, blood transfusion reactions etc.
GRAFFIAN FOLLICLE - It appears as knob or stigma in medulla. It is round, discovered by Graff. It is covered by 2 layers - thecae externa & theca interna. From theca i
type study of polystomella
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Define Tips that should be followed before an event Start? Before the event, following tips should be followed: As the glycogen stores may be used up during night, a h
The bases in DNA have carbon-nitrogen ring structures; due to the nitrogen atoms they are known as nitrogenous bases. There are two parts of ring structure. Adenine and guanine are
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