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Biology Winter Final Review Exam
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Questions in this quiz (20)
1What factors cause genetic drift?
- ANatural disasters
- BRandom mutation
- CMigration
- DThe evolution of an allele from recessive to dominant
2Gene flow is the flow of alleles into and out of a population over time
- ATrue
- BFalse
3What are Darwin's three principles about how natural selection occurs?
- AOrganisms inherit characteristics and traits from their parents and then produce their own offspring
- BOrganisms will always mutate and bring new traits into the gene pool which are selected based on usefulness
- COrganisms produce more offspring than will ultimately survive
- DOrganisms and offspring differ from each other because of the characteristics or variations they inherit
4Harmful mutations are removed from the gene pool via
- ANatural selection
- BOrganisms with those mutations are sterile
- CGenetic drift
- DOrganisms with those mutations die before they can reproduce
5If there is not enough variation in a species
- AAdvantageous or rare traits and alleles vanish from the population
- BGenetic diversity goes down
- CMore alleles are created in order to offset the lack of variation
6In the eighteenth century, which men reintroduced ideas about the evolution of animals?
- ACharles Darwin and Alfred Wallace
- BErasmus Darwin, Georges-Louis Leclerc, and Comte de Buffon
- CErasmus Darwin and Charles Darwin
- DErasmus Darwin and Alfred Wallace
7What is Charles Darwin's theory?
- AOffspring inherit traits from their parents and offspring with the most advantageous traits will be more likely to survive and procreate
- BOffspring inherit traits from their parents and the offspring who reproduce less are less fit
- CParents only pass on advantageous traits to their offspring, making natural selection a competition between the elite (in terms of genes)
- DTraits are neither advantageous or harmful, but are randomly passed down, similar to mutations
8Divergent evolution is where two completely unrelated species develop similar traits
- ATrue
- BFalse
9Homologous structure
- ACorresponds to divergent evolution
- BDescribes structures which are genetically related in two species who share a common ancestor
10Analogous structure describes similar structures in two genetically unrelated organisms
- ATrue
- BFalse
11Check all boxes which are examples of mechanisms for genetic change
- ABlue eyes in humans being selected for 10,000 years ago
- BThe mutation that causes sickle cell anemia
- CThe migration of early hominids out of Africa
- DThe elimination of rare alleles in Avida when the population gets too small
12The Founder Effect describes why populations which were started by just a few organisms have decreased genetic diversity
- ATrue
- BFalse
13Choose the best definition for fitness in an organism
- AHow many kids a person has
- BThe number of offspring an organism contributes to the next generation, compared with other individuals in its population
- CThe number of years an organism lives divided by the number of offspring it is able to produce
- DThe survival rate of an organism's offspring compared to the survival rate of others in its population
14Population means all the organisms in a given species, even if they don't live in the same geographic area
- ATrue
- BFalse
15Most genetic traits are simple (as opposed to complex)
- ATrue
- BFalse
16The cell's 3D printers are called
- AtRNA
- BRibosomes
- CHelicase
- DSequence of DNA nucleotides
17Nucleotides
- AAre symbols of the cell's "software code"
- BAre represented by the letters A, U, G, and C in DNA
- CProvide the code for making amino acids
- DSubstitute one of their letters when DNA transcribes mRNA
18The mRNA nucleotides are determined by
- AThe order of DNA nucleotides
- BThe order in which they were transcribed
- CRandom genetic mutation
- DThe "flash-drives" of a cell
19The Founder Effect
- AExplains why most Native Americans don't have type B blood
- BIs one cause of genetic drift
- CIs defined as a loss in genetic diversity which occurs when a population is started by a small number of individuals
20The Bottleneck Effect
- AExplains why cheetahs are all essentially clones of one another
- BDescribes the loss of genetic variation which occurs when a population's size decreases sharply over a generation
- CIs often used with and is similar to the Founder Effect
- DExplains why human beings aren't very genetically diverse
Information
- Description
- Quiz on Biology Winter Final Review Exam, created by LizzieWF on 08/02/2015.
- Author
- LizzieWF
- Language
- English
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- 130
- History
- Created on 8 Feb 2015 · updated on 19 Feb 2016
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