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Pratice Final Answers

Pratice Final Answers - Practice Evolution Questions for...

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Practice Evolution Questions for the Final. Questions 30-45 pertain to material covered in Lecture 24 and later. 1. Which of the following are not examples of microevolution? A. Members of a species of one of Darwin’s finches began to show variability in beak size on an island with hard nuts that are difficult to crack and rare berries that must be eaten quickly when they ripen B. Insects acquired pesticide resistance after many pesticide treatments in a cotton field C. Peppered moths shifted from mostly white forms with spots to mostly black forms when coal was burned during the industrial revolution D. German shepherd and Belgian malinois dog breeds were developed from a common ancestor through artificial selection E. All of the above are examples of microevolution ANSWER: E 2. Which are correct statements regarding the evolution of human ancestors? 3. An African butterfly species exists in two strikingly different color patterns. This is likely caused by: 4. You are studying three populations of birds. Population 1 has ten birds, of which one is brown (a recessive trait) and nine are red. Population 2 has 100 birds. In that population, ten of the birds are brown. Population 3 has 30 birds, and three of them are brown. Which population is most likely to be subject to the bottleneck effect? 5. One of the crosses that Mendel conducted was to take peas with purple flowers and cross them with peas with white flowers (i.e. these were the parents, the offspring were the F 1 generation). The allele for purple color was dominant over the allele for white color. Which is a false statement regarding this cross? A. Both purple and white parents were homozygous for the allele for flower color B. All F 1 flowers would be purple C. The phenotype of the F 2 (i.e. resulting from crossing F 1 plants) would be present in a 1: 2: 1 ratio D. If a parental pea plant with white flowers was allowed to self fertilize, all offspring would have white flowers E. None of the above is false ANSWER: C
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