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)Adoption 2. Which of the follewing ore mout laely to eventuolly become ) A mixe

ID: 3164843 • Letter: #

Question

)Adoption 2. Which of the follewing ore mout laely to eventuolly become ) A mixed population of blue-flowered amd white-flowered Anemone plants tho ome time of the yeor y unn orbredi lord where, becouse of overcrowding some indiduol hov population of Anolis e nearby uninhoblted islond of monkeyflowers (Mimolus spp.) that stroddle the tropical and subtropical con be pollinated by the same bird species d) Populations of howler monkeys that inhabit the northern and southern landmasses about the Panama Conal e) None of the above 3. The effects of genetic drift can be directly counteracted by a) genetic uniformity (low number of allele variants). b) small population size. c) extinction. d) selection e) none of the above. ng. March the numbered concept on the right with the letter of the historica figere on the right who is associated with that concept a) Lamarck b) Darwin c) Aristotle d) Malthus 5. "Essay on Population" 6. Uniformitarianism 7. Transformism e) Lyell 9. Which of the following statements best describes a feature of the lysogenic cycle of lambda (A) phage? a) After infection, the viral genes immediately turn the host cell into a phage-producing factory, and the host cell then lyses b) Most of the prophage genes are activated by the product of a particular prophage gene. c) The phage genome replicates along with the host genome. d) Certain environmental triggers can cause the phage to exit the host genome, switching from the y to the lysogenic e) The phage DNA is incorporated by crossing over into any nonspecific site on the host cells DNA.

Explanation / Answer

1. A) mutations

All genetic variations taking place in the population will first be caused by mutations. Mutations are heritable changes that take place in the DNA of a person. These may be in the form of single alterations of the nucleotides or there may be changes in the number of chromosomes. Mutations, when positive, help in survival of a person making him fit for a changing environment.

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