BIOL 44400 Study Guide - Midterm Guide: Mitochondrial Eve, Allele Frequency, Population Bottleneck

56 views7 pages

Document Summary

Biol444 exam 2 fall 2015 100 points - key. Multiple choice: choose the best answer and bubble it in on the scan sheet (n=25, 2 pts each) Macroevolution c. ) microevolution d. ) natural selection e. ) mutation. Natural selection can only act when there exists ______________________. a. ) High allelic frequencies c. ) standing phenotypic variation d. ) standing genetic variation e. ) both a. ) and b. ) are correct. The misbehaving of chromatids during cell division that results in anueploidy is called a. ) Which of the following is true of mitochondrial eve? a. ) She must have mated with y-chromosome adam c. ) she was the single person from whom all individuals have descended d. ) she lived 100,000-200,000 years ago e. ) none of the above. When did the rapid expansion of humans throughout the americas begin? a. ) About 18,000-15,000 years ago c. ) about 10,000 years ago d. ) about 200,000-100,000 years ago e. ) about 2 million years ago. Indigenous american peoples have allele frequencies more closely related to indigenous.