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Quiz By : joeiacovino

Biology II - Exam 1

1.  Localized group of organisms belonging to the same species is
 community
 population
 genus
 biodiversity

2.  A scientific Law carries more weight than a scientific Theory.
 True
 False

3.  The sun and planets formed about
 4.6 Billion years ago
 3.9 Billion years ago
 6-10,000 years ago
 550 Million years ago

4.  Life around hydrothermal vents use __________ for energy.
 Photosynthesis
 Oxygen
 Chemiosynthesis
 Unknown

5.  Organic molecules are found only on Earth.
 True
 False

6.  ______ minerals facilitate polymer formation.
 Organic
 Hydrogen
 Clay
 Radioactive

7.  Life coming from inorganic molecules is called:
 Abiotic
 Polymer
 Chemiosynthetic
 Impossible

8.  RNA does not need __________ for self-replication.
 Ribose
 Nucleic Acid
 Enzymes
 Anything

9.  RNA
 Self splices
 Self replicates
 Catalyzes
 Possesses a phenotype & genotype
 All of the above
 None of the above

10.  An aggregate of abiotically produced organic molecules surrounded by a membrane-like structure.
 Enzyme
 Protobiont
 RNA
 DNA

11.  "Cell-like" structures that form abiotically,can self-replicate, and metabolize.
 Coacervates
 Liposomes
 All of the above
 None of the above

12.  What best satisfies the following: - Multiple protobiont lineages may have independently evolved. - Competition among lineages. - Lineages evolve. - Only one lineage remains today.
 Environment
 Protobiosphere
 Biodiversity
 Gene flow

13.  What where the first prokaryotes?
 Chemioautotrophs
 Eukaryotes
 Photoautotrophs
 Stromatolites

14.  Genetic variation must be present in a population before natural selection can act on the population.
 True
 False

15.  Chemioautotrophs use Sulfur and __________ to create energy.
 Carbon dioxide
 Light
 Oxygen
 Methane

16.  Stromatolites are dated back to about
 4.6 Billion years ago
 3.9 Billion years ago
 3.5 Billion years ago
 5000 years ago

17.  Rock-like structures comprised of photosynthetic bacteria are:
 Chemioautotrophs
 Eukaryotes
 Stromatolites
 Clay

18.  This term means a species is still alive today.
 Extant
 Extinct
 Node
 Clade

19.  These created an oxygen rich atmosphere on early Earth.
 Eukaryotes
 Protobionts
 Stromatolites
 Chemiotrophs

20.  The following relates to what: - Undigested prey - Host selective advantage - Host and prey became one
 Prokaryotes
 Endosymbiosis
 Archea
 Bacteria

21.  In the Hardy-Weinberg formula, the "2" in 2pq is required because:
 There are 2 alleles in Heterozygotes
 There are 2 alleles in Homozygotes
 Heterozygotes can be expressed in 2 ways
 No good reason

22.  Equilibrium in Hardy-Weinberg shows a population is:
 Evolving
 Not evolving
 Dominant
 Recessive

23.  A population with two alleles (A and a) is in equilibrium. The frequency of "a" is 0.4. What percentage of the population is homozygous for the "A" allele.
 60%
 36%
 16%
 48%

24.  A population with two alleles (A and a) is in equilibrium. The frequency of "a" is 0.7. What percentage of the population is heterozygous?
 70%
 30%
 49%
 42%

25.  The frequency of an allele that is being selected against should __________ over generations within a population.
 Increase
 Decrease
 Find equilibrium

26.  A population with two alleles (A and a) is in equilibrium. The frequency of "a" is 0.4. What is the frequency for the "A" allele?
 60%
 36%
 16%
 48%

27.  The following is evidence for ________: - Organelle biochemistry homologous to prokaryotes. - Organelles replicate via binary fission. - Organelles possess their own DNA.
 Bacteria
 Chemiosynthesis
 Endosymbiosis
 Tetrapods

28.  When we deviate from Hardy-Weinberg equilibrium we are witnessing _________.
 Evolution
 Stasis
 Punctuated Equilibrium
 Nothing

29.  With the globalization of humans, __________ has increased.
 Mutation
 Gene Flow
 Genetic Drift
 Founder Effect

30.  Three domains of life were established by:
 4.6 Billion years ago
 3.9 Billion years ago
 550 Million years ago
 2.7 Billion years ago

31.  The oldest multicellular lineage was about
 1.5 Billion years ago
 3.9 Billion years ago
 550 Million years ago
 5000 years ago

32.  4.5 BYA (Billion years ago):
 Archean Eon
 Proterozoic Eon
 Phanerozoic Eon
 Cenezoic Era

33.  2.5 BYA:
 Archean Eon
 Proterozoic Eon
 Phanerozoic Eon
 Cenezoic Era

34.  540 MYA:
 Archean Eon
 Proterozoic Eon
 Phanerozoic Eon
 Cenezoic Era

35.  550 MYA event:
 First Eukaryotes
 Oxygen Revolution
 First Animals
 Cambrian Explosion

36.  2 BYA
 First Eukaryotes
 Cambrian Explosion
 Extinction of Dinosaurs
 Oxygen Revolution

37.  65 MYA:
 First Eukaryotes
 Cambrian Explosion
 Extinction of Dinosaurs
 Oxygen Revolution

38.  The "Age of the Dinosaurs" is also known as the:
 Archean Eon
 Oxygen Revolution
 Mesozoic Era
 Cenezoic Era

39.  Flowering plants were the first types of plants to appear on land.
 True
 False

40.  700 MYA
 First Eukaryotes
 Cambrian Explosion
 Extinction of Dinosaurs
 First Animals

41.  The theory that continents move via plates associated with geologic activity is called:
 Plate Tectonics
 Catastrophism
 Natural Selection
 Gradualism

42.  Human agriculture begins in the __________.
 Archean Eon
 Proterozoic Eon
 Cenezoic Era
 Holocene Epoch

43.  Change in allele frequency over time.
 Natural Selectiion
 Mutation
 Evolution
 Genetic Drift

44.  Specific location of a gene/ DNA sequence on a chromosome.
 Locus
 Allele
 Population
 Gene Pool

45.  Variant of DNA sequence/ locus.
 Locus
 Allele
 Population
 Gene Pool

46.  A group of interbreeding individuals.
 Locus
 Allele
 Population
 Gene Pool
 Horny Mofo's

47.  Total aggregate of alleles in a population.
 Locus
 Allele
 Population
 Gene Pool

48.  How do populations evolve?
 Migration (gene flow)
 Mutation
 Genetic Drift
 Selection
 All of the above

49.  Mutation, meiosis, crossing over, & random fertilization all drive __________.
 Equilibrium
 Natural Selection
 Speciation
 Genetic Variation

50.  A new breeding population, reduced gene flow between the new and original population, and time are the ingredients that lead to ____________.
 Natural Selectiion
 Biodiversity
 the Founder Effect
 Reduced Species

51.  Rapid species diversification from a single common ancestor.
 Natural Selectiion
 Adaptive Radiation
 Population


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