Exam (elaborations)
BIO 117 Exam 1 (Dr. Hubbard) Questions with Complete Solutions
- Course
- Bio 117 WVU
- Institution
- Hondros College School Of Nursing
BIO 117 Exam 1 (Dr. Hubbard) Questions with Complete Solutions
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BIO 117 Exam 1 (Dr. Hubbard) Questions with Complete SolutionsWhat does it mean for a population to be at equilibrium Correct Answer-
No genetic traits are favoured Or no evolution
Under what five assumptions were the Hardy-Weinberg Equilibrium (HWE) equations designed? Correct Answer-1. Random Mating
2. No Natural Selection
3. No Genetic Drift
4. No Gene Flow
5. No Mutation
What does p stand for Correct Answer-Provided Value for HWE
What does q stand for Correct Answer-Quantitated Value for HWE
What is the HWE formula? Correct Answer-p^2 + 2pq + q^2 = 1
What are the 5 reasons for evolutionary change? Correct Answer-1. Non-Random Mating
2. Natural Selection
3. Genetic Drift
4. Gene Flow 5. Mutation
What are the possible outcomes for a mutation? Correct Answer-1/4 Advantageous 1/2 Neutral
1/4 Deleterious
How does inbreeding affect the number off heterozygotes in a population? Correct Answer-It decreases due to lack of new traits
What is the founder effect? Correct Answer-A population splits off from
the rest causing genetic drift
What is the bottleneck effect? Correct Answer-Extinction event wipes out a population indiscriminately leaving a few members alive
What are the differences between natural and artificial selection? Correct
Answer-Natural- uses 1 of 4 selection processes Artificial- uses outside forces such human intervention
Describe oscillating selection? Correct Answer-A selection process where certain traits are considered more favourable at different times
What is a limitation of selection? Correct Answer-Selection can only use
available genetic variation
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