5 Suppose that you have a large population (>100,000 individuals). At a neutral locus in this population, the allele frequencies are freq(A1) = 0.25, freq(A2) = 0.75. You sample that population to form 100 sub-populations of 20 individuals each. Over the next 40 generations, all these sub-populations go to fixation at that locus. Approximately how many go to fixation for allele A1 vs. allele A2? 75 at A1, 25 at A2 50 at A1, 50 at A2 25 at A1, 75 at A2 It depends on the selective pressures at work
Which of the following is NOT true about sexual selection? Sexual selection operates only on males because they are the ones that compete and females are the “choosy” ones Which types of sexual signals evolve in a given lineage may depend on pre- existing sensory biases (eg. whether individuals can see in color, or what sounds they like) Sexual signals are often “expensive” (in energy, or risks to safety), which means that usually only healthy individuals can put on the most impressive displays We expect that if both parents participate in raising the young, then both sexes will be under selection to exhibit cues relating to ability to provide and care for offspring
Which of the following is NOT true about sexual selection? - nursing assignment tutor.