Download Bio 1114 Midterm 1 Practice Questions,Graded A+. and more Exams Biology in PDF only on Docsity!
Bio 1114 Midterm 1 Practice
Questions,Graded A+.
An animal learns how to crack open a coconut for nutrition in his lifetime. His offspring will be born knowing how to crack open a coconut because... a. of change in allele frequencies b. environmental effects play a large role in evolution c. this is a born behavior d. the animal will not be born knowing to do this - correct answer D There were 100 birds born in a new generation and only 50 survived. This was due to lack of food. This is an example of: a. Founders Effect b. Bottleneck Effect c. Natural Selection d. Differential Survival - correct answer D Adaptive evolution is caused by natural selection, but also includes which of the following? a. genetic drift b. gene flow c. sexual selection d. mutation - correct answer C Which of these is not a possible source of genetic variation? a. Sexual Selection b. Migration c. Mutations d. Individual Development - correct answer D
Which answer is not a condition of the Hardy Weinberg principle? a. Population size is very large b. No immigration or emigration c. Selective mating d. No natural selection e. No net mutation - correct answer C What can alter allele frequencies in a population? a. Natural selection b. Genetic drift c. Gene flow d. All of the above e. Only A & B - correct answer D What is the only mechanism that consistently causes adaptive evolution? a. Genetic drift b. Mutations c. Natural selection d. Cross breeding e. Mendelian genetics - correct answer C A tadpole develops into a frog. What is this? a. Evolution b. Mutation c. Growth d. None of the above - correct answer C What is one reason to we don't study evolution? a. Medicine
Which of Darwin's four postulates explains the passing on of variations to offspring? a. Variation b. Differential survival c. Extinction d. Inheritance - correct answer D If a population is in Hardy-Weinberg equilibrium it is: a. Evolving and the 5 postulates are met b. Not evolving and the 5 postulates are not met c. Evolving and the 5 postulates are not met d. Not evolving and the 5 postulates are met - correct answer D What is the genotypic ratio of a monohybrid cross? a. 1:2: b. 3: c. 9:3:3: d. 2:2 - correct answer A "Characteristics are inherited independently from one another during gamete formation." This definition applies to which term? a. Law of Segregation b. Recombination c. Heritability d. Law of Independent Assortment - correct answer D Which one of these evolutionary concepts cannot change allele frequencies in a population? a. Natural selection b. Scala nature c. Gene flow
d. Genetic drift - correct answer B Do Cavendish bannas experience evolution by natural selection? a. Yes b. No - correct answer B Which of the following did Mendel's laws of segregation and independent assortment prove in Darwin's lacking theory of evolution? a. Changing allele frequencies b. Species with the best fit traits will reproduce and survive c. A mechanism or inheritance d. The bottleneck effect - correct answer C What did Darwin specifically observe to prove his idea of how evolution (nonrandom) worked? a. Organisms have simple modifications b. Species variation from different environments c. Modern species do not resemble fossils d. Genetic drift - correct answer B One of Darwin's postulates of natural selection is extinction. Is extinction random or nonrandom and who was the first to document extinction. a. Nonrandom & Cuvier b. Nonrandom & Lyell c. Random & Leclerc d. Random & Aristotle - correct answer A "A certain species of fish can have one of three different scale colors within a population." This is an example of: a. Natural variation b. Discrete variation
a. Is a prerequisite b. Is a result of the process c. Is not related d. None of the above - correct answer A Which example best illustrates evolution? a. Tadpole to frog b. Growing a sixth finger c. Pesticide resistance (bugs eating crops) d. Monkey washing sweet potatoes - correct answer C Evolution is not possible without? a. A long period of time b. Individuals within a species being variable c. Heritability d. Natural selection - correct answer B In a population of 400 koi fish, you count 350 koi fish. Koi fish is dominant to goldfish. Using this information, calculate the frequency of the recessive allele a. 0. b. 0. c. 0. d. 0.35 - correct answer D What mechanism comes into play if dark colored moths that live on dark tree bark become more common than light colored moths? a. Genetic drift b. Gene flow c. Natural selection
d. Founder's effect - correct answer C Why were the Galapagos Island an ideal place to study a population? a. Isolation b. Large population c. Finches are endemic d. No random mating - correct answer A Who proved the idea of extinction and what theory did they develop? a. Curvier: Tranformism b. Curvier: Essentialism c. Lamarck: Transformism d. Lamarck: Essentialism e. Linnaeus: Essentialism - correct answer B Who's theory of inheritance proves to be correct and what is it? a. Cuvier: Essentialism b. Lamarck: Transformism and inheritance of acquired characteristics c. Mendel: Dominance, segregation, and independent assortment d. Darwin: Blending - correct answer C What's included in the Law of Independent Assortment that isn't in the Law of Segregation? a. It is the same as the Law of Segregation, except it applies to multiple genes b. Inheritance of genes is determined by a factor c. Traits can be carried but not shown d. None of the above - correct answer A Which is a source of variation that can not be a factor in evolution? a. Length of hair
