When organisms leave the group they were born into and join another group, this can alter allele frequencies in the new group. This mechanism is called gene flow.
Allele frequency is a relative term that tells about the frequency of an allele in a population. To calculate allele frequency, the total number of allele of interest is divided by the total number of all the alleles present in that population.
Gene flow is the movement of the genes. It can move into a population or move away from the population. This results in change in the total gene pool of a small population. The migration can either ne natural or forced.
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Because there is countless amounts of evidence proving evolution. Where as most other beliefs and theory's have very little to back them up.
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Explanation:
here is the answer, i hope this helps .>.
Answer:
C. Gene trees are only useful studying the relationships of sequences from different species.
Explanation:
Gene tree traces the evolutionary history of a particular gene. It includes all the events like duplication and speciation. It helps to study the relationship of genes from different species. Often these are orthologous genes which came form the same ancestor and code for the same protein indifferent species. Gene tree also helps to study the relationship of genes in the same species. Often these are paralogous genes which evolved by duplication and code for similar but not identical proteins in the same species. Hence, the statement that gene trees are only useful for studying the relationships of sequences from different species is incorrect.
