Which (if any) of the following is not consistent with the observations of Charles Darwin when he proposed the ideas ofNatural Selection and descent and modification?
A A species can produce more offspring than can survive
and reproduce
B. Variation exists among individuals
C. In competition for
resources or mates the fittest
will survival and reproduce
D. Some alleles increase or decrease over time
E. All of the above are consistent with the ideas he proposed
E. All of the above are consistent with the ideas he proposed
Which of the following
explanations for the variety
of finch species on the Galapagos islands
is most consistent with the theory of evolution?
A Each of the different species
migrated from the mainland independently.
B. Each of the different species
migrated from the mainland together
C. The current finch species have descended and evolved from one or a few finch species
that migrated from the mainland
some time ago
D. All the current finch species have descended and evolved from dinosaurs on the islands millions of years ago
C. The current finch species have descended and evolved from one or a few finch speciesthat migrated from the mainland
The idea that evolution may not proceed at a constant rate, but that some periods saw rapid change and variations, followed by periods of relative stasis is most consistent with:
A Punctuated equilibrium
B. Gradualism
C. Spontaneous generation
D. Lamarck's ideas
A Punctuated equilibrium
Support for the mechanism of evolution is seen in the finding that small changes in regulatory genes can have a major profound effect on an organism and that similar organizer genes control the development of the same organs, like eyes or segmentation, in diverse
organisms. Evidence such as this can be found by examining:
A The Fossil Record
B. The Molecular Record
C. The Anatomical Record
B. The Molecular Record
Two similar bird species that mate at different times
of the year and have distinctive mating calls are examples of:
E. Natural selection
A. Prezygotic isolating mechanisms
Which (if any) ofthe following are not homologous structures?
A bat wings and porpoise flippers
B. human arms and horse foreleg
C. butterfly wings and bird wings
D. All of the above are pairs ofhomologous structures
C. butterfly wings and bird wings
In population biology the "Hardy-Weinberg" equation is used to analyze allele frequencies. Which of the following assumptions are made for the "ideal polulation"?
A. no natural selection to change allele frequency
B. random mating
C. equal offspring and survival
D. all three would apply to such a population
D. all three would apply to such a population
Assume a population of a species of beetle; very small beetles are eaten by ants, very large beetles can not fit into cracks in tree bark to lay their eggs properly. This population is under:
A. Directional selection
B. Stabilizing selection
C. Disruptive selection
B. Stabilizing selection
Assume that a person travels to a tropical
country and unknowingly brings several purple leaf bugs back in the bottom of their suitcase. These bugs take up residence on the houseplants in the person's apartment and soon the apartment is infested with purple leaf-bugs. In terms of population biology this would best be described as an example
of:
A. Mutation
B. Genetic drift
C. The Founder effect
D. Natural Selection
E. Selective Mating
C. The Founder effect
If a population practices positive assortive mating, or inbreeding what phenotypes might we expect to see?
A. heterozygotes will predominate and no recessive
traits will be seen
B. homozygotes will predominate and recessive traits
will appear more often
B. homozygotes will predominate and recessive traitswill appear more often
Which xplanation for the high frequency of the allele for sickle cell anemia in Sub-Saharan Africa is most consistent with current theories
in population biology?
A. the abundance of Uranium mines causes an increase in mutation
B. in the heterozygous condition
individuals are protected
from malaria
C. the abundance of trees increases the 02 concentration
D. Genetic Drift
B. in the heterozygous conditionindividuals are protectedfrom malaria
To create the 5 kingdom system
living creatures are separated according
to their cellular
structure and how they acquire
energy (food). To create the three domain "rRNA
tree of life" the sequences of a common gene (rRNA) are compared and similar sequences are assumed to imply closer relationships. How do the three domain
rRNA tree and 5 kingdoms compare?
A. No difference
B. Plants, animals and fungi are small branch tips on the rRNA Tree of Life
C. In the 5 kingdom system all eukaryotes are in one kingdom
D. In the 5 kingdom system the protists
are scattered into several kingdoms
B. Plants, animals and fungi are small branch tips on the rRNA Tree of Life
If two animals are in the same Class they must also be in the same:
D. Phylum
How do prokaryotes differ from eukaryotes?
A. Prokaryotes are single celled
and all eukaryotes are multicellular
B. Prokaryotes lack DNA C. Prokaryotes lack RNA
D. A Prokaryote lacks a nucleus
D. A Prokaryote lacks a nucleus
How do Bacteria,
Archaea and Eukaryotes compare?
A. In all respects Bacteria and Archaea
are similar and differ from Eukaryotes
B. In all respects Bacteria and Eukaryotes are similar and differ from Archaea
C. In all respects Eukaryotes and Archaea are similar and differ from Bacteria
D. Bacteria and Archaea both lack a nucleus, but in some ways Archaea are like Eukaryotes
D. Bacteria and Archaea both lack a nucleus, but in some ways Archaea are like Eukaryotes
Which group of bacteria is associated with the production of oxygen in early earth history?
B. Cyanobactria
Which of the following (if any) is not one of the four postulates Koch developed to establish a causative link between a specific microbe
and a disease?
A. Organism must be present
in individuals suffering from the disease
and absent in healthy individuals.
B. Organism must be isolated,
grown in pure culture away from the host.
C. Injection of organisms from the pure culture into a healthy
animal should cause the disease
symptoms to appear.
D. The organism
must then be isolated from the diseased
animal, cultured again,
and shown to be identical
in size, shape,
and color to the original
organism.
E. All of the above are valid postulates
E. All of the above are valid postulates
Which of the following statements is not accurate concerning Virus?
A. Viruses are composed of nucleic acid and protein
and are not cells or live organisms.
B. Viruses have a genome,
but must use the ATP and carbon compounds
of their host to copy and translate their genome.
C. Most organisms are parasitized by at least one kind of virus.
D. Viruses are extremely small when compared
to a eukaryotic cell
E. All the above statements
are true
E. All the above statements are true
True or False: On earth, Nitrogen fixation
from molecular N2 to a form that can be used by other living organisms is performed
by Bacteria.
A. True B. False
A. True
Which (if any) of the following statements is not valid concerning
Bacteria?
A. Bacteria occupy almost every
place on earth
B. Bacteria are the most numerous organisms
on the planet
C. Bacteria can obtain energy from light,
organic and inorganic compounds
D. All bacteria cause disease and are harmful to humans
E. All of the above are valid
D. All bacteria cause disease and are harmful to humans
Viral genomes may be in all of the following
forms except:
A. double strand DNA
B. single strand RNA
C. RNA genome that is reverse transcribed into DNA by the host cell
D. All of the above are possible viral genomes
D. All of the above are possible viral genomes
What term best describes the protists?
A. all small creatures
B. eukaryotes that are not animals, plants or fungi
C. the group that includes bacteria and harmful eukaryotes
D. all unicellular eukaryotes
B. eukaryotes that are not animals, plants or fungi
Which (if any) of the following is not a member of the protists?
A. dinoflagellates and diatoms
B. organisms responsible for malaria or toxoplasmisis
C. ciliates, like paramecium
D. Slime molds and brown algae or Kelp
E. all of the above are protists
E. all of the above are protists
True or False: Fungi are classed as plants because they are nonmotile and have chloroplasts.
A. True
B. False
B. False
Which (if any) of the following is not a fungus?
B. all are fungi
True or False:
According to the Endosymbiosis Theory, mitochondria originated when a bacterial cell took up residence inside a eukaryotic cell more than a billion years ago.
A. True
B. False
A. True
How do ferns differ from Gymnosperms and Angiosperms
A. ferns lack chlorophyll
B. ferns lack vascular tissue for water and nutrient transport
C. Ferns lack seeds
D. all ofthe above
E. none of the above
C. Ferns lack seeds
True or False: In angiosperms, flowers
aide in pollination and fruit aids in dispersal of the seeds.
A. True
B. False
A. True
True or False:
In angiosperms, flowers the stigma and style are the male parts that produce pollen and the anther and stamen are the female parts that receive
pollen.
A. True
B. False
B. False
True or False: In monocots the seed has a single cotyledon, the leaves have parallel veins and the flower parts come in threes.
A. True
B. False
A. True
True or False: Pine trees are examples of gymnosperms, their seeds are not fully enclosed.
A. True
B. False
A. True
True or False:
An angiosperm plant seed contains: a plant embryo, a source of food and a protective cover.
A. True
B. False
A. True
True or False: Some fungi may undergo mitosis as either haplids or diploids.
