Biology

Biology, 08.07.2019 23:00, sanchez7489

What is gene flow? a. when a population splits in two b. two populations transferring genes c. selection for extreme traits d. a mutation becoming more common

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Biology, 22.06.2019 16:20, cobalt3931

What is gene flow? apexa: selection for average traits b: when a population splits in twoc: a mutation becoming more commond: genes moving between two populations

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Biology, 17.07.2019 19:00, pringlexavier798

Match the following terms and definitions. 1. genetic change in a population or species over many generations 2. male and female reproductive cells (egg and sperm cells) 3. mechanism of evolution that suggests traits can be shifted between populations by outbreeding or migration 4. all of the genes present in a specific population 5. mechanism of evolution that suggests changes in the gene pool of a population are due to chance 6. mechanism of evolution proposed by darwin; suggests traits suitable for an environment survive while those less favorable do not 7. the expression of a genetic trait; what the trait looks like natural selection genetic drift gene flow gene pool phenotype gamete evolution

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Biology, 29.08.2019 14:00, amiechap12

Which is the transfer of genes from one population to another? gene flow genetic drift gene mutation genetic selection

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Biology, 10.10.2019 17:10, lolz55678

Stickleback fish found in lakes rapidly evolve a low armor plate morphology when compared to marine populations. analysis of the gene responsible shows that populations with low plating form one clade and marine populations form another. however, gene trees formed with other genes show that the low plating phenotype probably evolved independently multiple times. how have scientists resolved these contradictory gene trees? group of answer choices a. the mutation first appeared in a single lake, but gene flow between lakes connected by rivers has spread the mutation to new populations where it increased in frequency. b. all of the populations in lakes are very closely related. the other genes suggesting different topologies of relatedness are biased by geographic covariation. c. mating between individuals of different populations has allowed introgression of the gene into many lake populations. d. high armor evolved independently from a low armor state in the oceanic population, where it increased in frequency to near fixation. e. a single origin of the low plating gene in the oceanic population that remained at a low frequency until lakes were colonized. then the gene independently became.

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