Essay A. All four mechanisms of evolution (mutation, migrati…
Essay A. All four mechanisms of evolution (mutation, migration, genetic drift, and natural selection) that we have discussed influence speciation. Choose 3 of these mechanisms and for each describe (a) whether it helps or hinders speciation (or both) and (b) why it has that particular impact on speciation.
Read DetailsBased on the gene and protein sequences that follow, what ty…
Based on the gene and protein sequences that follow, what type of mutation has occurred and what is the effect on the polypeptide? Normal gene: ATGGCCGGCCCGAAAGAGACC Mutated gene: ATGGCCGGCACCGAAAGAGACC Normal protein: Met-Ala-Gly-Pro-Lys-Glu-Thr Mutated protein: Met-Ala-Gly-Thr-Glu-Arg-Asp
Read DetailsBateman’s gradients can be used to understand the strength o…
Bateman’s gradients can be used to understand the strength of sexual selection acting on a sex. In snails, populations include two sexes, but those sexes can be male and hermaphrodite, female and hermaphrodite, and male and female. In this example, the population is composed of males and hermaphrodites. Using the graph below, who is sexual selection acting on? Note: x-axis = number of mates & y-axis = number of offspring
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