Which of the following statements about evolution by genetic drift is correct?     -The many neutral alleles currently in the population will eventually go extinct except for one.     -In general, dominant alleles will persist longer in the population.     -Recessive alleles tend to disappear from the population sooner.     -The rates of evolution by genetic drift usually do not change much with different population sizes.     -All of the above

Tay-Sachs disease is a recessive genetic disease. Individuals with this disease rarely survive past the age of four. In the general population, approximately 1 person in 300 carries the allele for this disease. However, in some populations, including the Irish Americans, the Ashkenazi Jews and the Cajuns from Louisiana, the proportion of Tay-Sachs carriers is much higher (1 in 27 to 1 in 50) than in other populations. Which evolutionary scenario can be predicted to produce a high frequency of Tay- Sachs disease in these populations? All three populations descend from a small number of settlers O These populations experienced stabilizing selection These populations have higher than average mutation rates These populations experienced disruptive selection The Tay-Sachs allele is advantageous at the heterozygous state

A yellow mouse blends into a yellow sandy beach area while a white mouse stands out.  The yellow mice survive and reproduce more often than the white mice. what type of agent of evolution is this and why

Which of the following does NOT accurately complete the sentence, "When a beneficial recessive allele is rare..." Correct Answer -   selection can quickly increase the allele in the population.   Incorrrect Answer -  Most copies of the allele are hidden in heterozygotes.    Question: Please explain in detail why the correct answer is correct and please also explain in detail why the incorrect answer is not correct.