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1- What two evolutionary agents are most responsible fordecreases in gentic variation in a population ? 2- How can selection cause two populations to become differentwith time ? 3- what effect would increasing gene flow between twopupulations have on their genetic makeup ? 4- Through what mechanism can new gentic […]

Choose two nonhuman species that interact with each other, such as bees and flowers, or predator and prey species, or two species that compete. Or, you can consider the effect of an environmental factor on living nonhuman organisms, such as the effects of light or sound on plants or animals, […]

(DQ2  Please reply to the following discussion with your concerns, do you have any questions, or thoughts. Min of 50 words to 80 words.  The quality report that I found is for Denton, TX which is only 20 miles from me. I was unable to find one for my city. […]

Sickle-cell anemia is caused by a mutation in the ?-globin gene. Heterozygotes for the Hbs disease allele have some protection from malaria relative to wild-type, but Hbs homozygotes rarely live to produce offspring. 50 individuals homozygous for the normal (non-disease) allele produced a total of 47 children. 50 heterozygous individuals […]