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Gene flow.

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The transfer of genes between two genetically different populations among themselves is called gene flow.
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Which of the following is/are incorrect ? (A) In nature food chain exist not food web (B) Gene flow occur between two different population (C) Flow of energy in ecosystem is linear (D) All ecosystem are constant in size. (E) Plants capture onlt 2-10% of the PAR

Which of the following is correct ? I. Migration is the movement of individuals from a population to another population II. Emigration is the migration of individuals out of an area III. Immigration is the migration of individuals into an area IV Gene flow cannot alter the genetic charecteristics of populations

Match column I with column II and select the correct option from the codes given below. {:("Column I","Column II"),("Mutation",(i)"Changes in population's frequencies due to chance alone"),("Gene flow",(ii)"Differences in survival and reproduction among variant individuals"),("Natural selection",(iii)"Immigration, emigration change allele frequencies"),("Genetic drift",(iv)"Source of new alleles"):}

Assertion : Hardy-Weinberg principle states that in the absence of disturbing influences, gene frequencies of large populations of sexually reproducing organisms do not change , provided that matings occur at random. Reason : The disturbing influences include mutation, gene flow genetic drift, genetic recombination and natural selection.

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You have identified a useful gne in bacteria. Make a flow chart of the steps that you would follow to trasnfer this gene to a plant.