BIOL 214 Exam Questions with Complete Solutions (Latest 2025) What term refers to the movement of a pathogenic organism (a virus or bacterium) from an animal species into humans? - Correct Answers ✅Epizootic What is the distinction between a theory and hypothesis? - Correct Answers ✅A theory explains a large range of patterns and data, and has been well supported by many empirical tests, whereas a hypothesis has not Does natural selection ALWAYS result in evolution? - Correct Answers ✅NO Can natural selection occur without evolution? - Correct Answers ✅Yes Can evolution occur without natural selection? - Correct Answers ✅Yes Does natural selection operate on phenotypes? - Correct Answers ✅Yes
True or False: The expected frequency of any heterozygote is
two times the product of the respective allele frequencies in a population following H-W assumptions. - Correct Answers ✅True 1 / 3
BIOL 214 Exam Questions with Complete Solutions (Latest 2025)
True or False: The expected frequency of any homozygote is
the square of the allele frequency in a population following H- W assumptions. - Correct Answers ✅True
True or False: The expected heterozygosity is 1-sum(pi^2). -
Correct Answers ✅True
True or False: A failure to detect a departure from H-W
equilibrium guarantees that the population satisfies all model assumptions. - Correct Answers ✅False-- cannot assume!
True or False: Natural selection requires phenotypic variation
among individuals. - Correct Answers ✅True
True or False: Fitness refers to the average reproduction
success of a particular phenotype or genotype. - Correct Answers ✅True
True or False: Any change in allele frequencies can be taken
as evidence of natural selection. - Correct Answers ✅False
True or False: Selection occurs at the level of the phenotype. -
Correct Answers ✅True 2 / 3
BIOL 214 Exam Questions with Complete Solutions (Latest 2025)
True or False: A response to selection requires the some of
the phenotypic variation has a genetic basis. - Correct Answers ✅True The process of evolution via natural selection requires several things, including...? (4) - Correct Answers ✅1) limiting resources, and therefore, some kind of competition for them 2) phenotypic variation among individuals in some trait or traits that influences how well organisms compete 3) a genetic basis to the phenotypic variation 4) an iteration of that process over multiple generations What is one thing that the process of evolution via natural selection does NOT require? - Correct Answers ✅Dominance of one allele over the other (consider incomplete or codominance) What are scientific models? - Correct Answers ✅A formal scientific description of processes that produce patterns What statement is true in regards to thinking about how scientists study both patterns in nature, and the processes that underlie those patterns? - Correct Answers ✅Patterns could have multiple distinct causes, so multiple hypotheses about the processes underlaying a pattern are advanced, and then experiments or models are used to try to evaluate their relative importance in explaining the pattern
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