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Variation and evolution Quiz
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Questions in this quiz (35)
1By definition evolution is:
- AChanges in allele and genotype frequencies in a population
- BPhenotypic variation in a population
- CInbreeding with relatives
- DAdaptation of a population to neutral environments
2Evolution acts at the level of the
- Acommunity
- Bspecies
- Cpopulation
- Decosystem
- Eindividual
3Which statement most accurately describes the process of natural selection?
- AHeritable traits that promote reproduction become more frequent in a population over time.
- BOnly the strongest survive.
- CSurvival of the fittest.
- DOrganisms change by random chance over time.
- EThe strong eliminate the weak in the race for survival.
4Which of the following agents of evolutionary change results in adaptation?
- Anatural selection
- Bgene flow
- Cgenetic drift
- Dall of these
5All traits present in nature are a result of evolution due to natural selection.
- ATrue
- BFalse
6Movement of individuals into a population can result in evolution.
- ATrue
- BFalse
7Natural selection is a completely random process.
- ATrue
- BFalse
8In the Hardy-Weinberg equation, p + q = 1, p and q represent
- AFrequency of genotypes in the population
- BSpecific combination of alleles in an individual
- CAll of these
- DFrequency of alleles of a single gene
9Which of the following represents the frequency of heterozygotes in a population that is in Hardy-Weinberg equilibrium?
- Ap
- B2pq
- Cq
- Dq2
- Ep2
10Hardy-Weinberg equilibrium will not occur in a population in which:
- AMutations do not occur
- BIndividuals mate at random
- CNatural selection does not occur
- DIndividuals immigrate or emigrate
- ESexual selection does not occur
11Which statement is NOT true about the maintenance of variation in a population?
- AOnly phenotypes are acted on by selection, so heterozygotes serve as a reservoir of recessive alleles that may be adaptive in a different environment.
- BVariations allow for the presence of conditions such as sickle cell anemia.
- CSelection for adaptation to a particular environment ensures that the population will become stronger and more viable under all conditions.
- DHeterozygote advantages may lead to selection for the heterozygote above either homozygote.
12Species that evolved more recently will be more advanced and better than their ancestral forms.
- ATrue
- BFalse
13Fossil and genetic evidence strongly support the idea that modern humans
- Aindependently arose from three different ancestral Homo species in Africa and Eurasia.
- Bderive from Neanderthals that independently evolved the features of modern humans in Europe and Africa.
- Call derive from a single African lineage that spread from there into other parts of the world.
- Dderive from a hybridization of several African and Eurasian Homo species.
14High concentrations of melanin resulting in darker skin reduces vitamin D production in regions of low UV.
- ATrue
- BFalse
15UV light is used to produce vitamin D, however excessive amounts degrade folate, an essential vitamin. People whose ancestors lived in the tropics have darker skin because:
- Adark skin protected vitamin D from degradation
- Bdark skin provides protection from folate degradation
- Cdark skin allowed increased production of vitamin D
- Ddark skin was important for social interactions
- Edark skin keeps people warmer
16Scientists use genetics to trace the evolution and migration of humans. How do scientists know which populations are older than others?
- AMembers of older populations have identical mitochondrial genomes.
- BMembers of older populations have more genetic variability.
- CMembers of older populations have more nuclear genes.
- DMembers of older populations have more genes in their mitochondrial genomes.
- EMembers of older populations have fewer nuclear genes.
17What is the name for the differences between individuals?
- AVariation
- BMutation
- CGenes
18What type of variation is shown by looking at peoples height?
- AContinuous
- BDiscontinous
19What type of variation is shown by looking at peoples eye colour?
- AContinuous
- BDiscontinuous
20In what format do we display continuous variation?
- ABell Shaped Curve (Line Graph)
- BBar Chart
- CScatter diagram
21In what format do we display discontinuous variation?
- ABell Shaped Curve (Line Graph)
- BBar Chart
- CScatter Diagram
22What type of reproduction produces genetically different offspring?
- ASexual
- BAsexual
23What type of reproduction results in clones?
- ASexual
- BAsexual
24What do we call a change in genes or DNA?
- AMutation
- BChange
- CNatural-Selection
25What is the name of the genetic disease that produces thick mucus that block the bronchioles in the lungs?
- ACystic Fibrosis
- BCystic hygroma
- CPorphyria
26What method is used to insert a normal gene into tissue during gene therapy?
- AInhaler
- BInjections
- CTablets
27What name is given to the principle that species change over time?
- AEvolution
- BNatural Selection
- CMutation
28What is the name of the mechanism by which evolution works
- ANatural selection
- BMutation
- CCircle of life
29Who proposed the theory of natural selection?
- ACharles Darwin
- BGregor Mendel
- CRobert Bunsen
30Other than variation and the principles of inheritance, what needs to be present for natural selection to work?
- ACompetition
- BFood
- CMutation
31What happens to a species if natural selection doesn't work fast enough for them to evolve?
- AThey become extinct
- BThey mutate
- CThey migrate
32What is the name of the poison to which rats have become resistant?
- AWarfarin
- BBrodifacoum
- CDiphacinone
33What can be used to increase mutation rates?
- ANatural Selection
- BIonising Radiation
- CPredators
34How many parents are required for sexual reproduction
- AOne
- BTwo
35How many parents are required for asexual reproduction?
- AOne
- BTwo
Information
- Description
- A short quiz on variation and evolution
- Author
- Sara Jalilnasab
- Language
- English
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- 5
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