What determines the dominance of a trait.
For example, in the second case of the beetle story given in chapter Heredity and Evolution, after the accident, most of the beetles should've been red as red was dominant in that population and blue had emerged recently. But blue coloured beetles come out to be maximum and red minimum. (According to Mendel's law of Dominance.)
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but red beetles were wiped out by the elephant so blue beetles flourished in the pop
Snehathequeen:
If the blue would reproduce, obviously red will be shown as they are genetically red too.
they are just trying explain how genetic drif happens .All are by chances its true they have trait of redness that can be expressed in later generatiins again
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Hey mate
Here is your answer
The second case is of genetic drift in which red beetles are crushed up by the elephants foot and thus the no of blue coloured beetles grew up and their population increased .
Here there is no case of dominant or recessive but a suudden accident due which a population with a certain trait grew up in population
Pl mark it as brainliast .
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