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Biology 105 > UNIT 4 Clicker and Quiz Questions > Flashcards

UNIT 4 Clicker and Quiz Questions Flashcards

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1
Q 
In a process called \_\_\_\_\_\_\_ bacteria may pick up pieces of DNA from the environment either from the same species or even different species.
A. Translocation
B. Recombination
C. Transformation
D. Replication
E. None of the above
A

C. Transformation

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2
Q 
In addition to a single large chromosome, bacteria may have one or more tiny circular DNA molecules called:
A. Nucleosomes
B. Plastids
C. Bacteriosomes
D. Plasmids
E. None of the above
A

D. Plasmids

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3
Q 
Before inserting a desired gene into a piece of single stranded DNA, cuts can be made at specific nucleotide sequences on DNA molecule by using:
A. Taq polymerases
B. DNA ligases
C. Restriction enzymes
D. DNA cleavage enzymes
E. None of the above
A

C. Restriction enzymes

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4
Q

The enzyme Taq polymerase was first isolated from:
A. Transgenic yeast cells
B. Prokaryotic microbes found on the ocean floor
C. Freeze-resistant bacteria found on Arctic glaciers
D. Bacteria living in thermal hot springs
E. None of the above

A

D. Bacteria living in thermal hot springs

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5
Q 
Commercial crops containing the Bt gene are more resistant to \_\_\_\_\_\_\_ than crops without this gene.
A. Freezing
B. Herbicides
C. Insects
D. Hail damage
E. None of the above
A

C. Insects

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6
Q 
Quiz Q:
Genes can be inserted into bacterial plasmids by using special enzymes called
A. DNA polymerases
B. Restriction enzymes
C. Promoter enzymes
D. Taq polymerases
E. None of the above
A

B. Restriction enzymes

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7
Q 
Quiz Q:
The first step in PCR reaction is to unwind the DNA double helix using:
A. DNA helicase
B. DNA polymerase
C. DNA primase
D. Heat (90-96 C)
E. None of the above
A

D. Heat (90-96 C)

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8
Q

Quiz Q:
In the first step of the polymerase chain reaction (PCR), target strands of DNA must be:
A. Denatured by restriction enzymes
B. Unwound and separated by heating
C. Annealed by primers that bind to the DNA promoter
D. Transcribed by DNA polymerase
E. None of the above

A

B. Unwound and separated by heating

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9
Q

Quiz Q:
Taq polymerase was first isolated from:
A. Transgenic yeast cells
B. Prokaryotic microbes found on the ocean floor
C. Bacteria living in thermal hot springs
D. Freeze-resistant bacteria found on Arctic glaciers
E. None of the above

A

C. Bacteria living in thermal hot springs

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10
Q 
Quiz Q:
In addition to a single chromosome, bacteria may have one or more small circular DNA molecules called:
A. Chromatids
B. Plastids
C. Plasmids
D. Trans genes 
E. None of the above
A

C. Plasmids

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11
Q 
Quiz Q:
Desired genes and bacterial plasmids can be permanently bonded to form transgenic organisms by:
A. Taq polymerases
B. Restriction enzymes
C. DNA polymerases
D. DNA ligases
E. None of the above
A

D. DNA ligases

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12
Q 
Quiz Q:
How many copies of DNA could be produced after three completed PCR cycles?
A. 2
B. 4
C. 8
D. 16
E. None of the above
A

C. 8

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13
Q

Quiz Q:
Transgenic crops containing the Bt gene:
A. Grow faster than crops without the Bt gene
B. Are more insect resistant than those without the Bt gene
C. Require less fertilizer than those without the Bt gene
D. Are more freeze-resistant than those without the Bt gene
E. None of the above

A

B. Are more insect resistant than those without the Bt gene

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14
Q 
Quiz Q:
The wings of a bird and the forelimbs of a dolphin would be considered \_\_\_\_\_\_\_ structures.
A. Homologous
B. Divergent
C. Analogous 
D. Vestigial
E. None of the above
A

A. Homologous???

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15
Q 
Quiz Q:
The author of the book An Essay on the Principle of Population Growth:
A. Lyell
B. Aristotle
C. Malthus
D. Lamarck
E. None of the above
A

C. Malthus

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16
Q 
Quiz Q:
James Hutton and Charles Lyell were 18th Century:
A. Biologists
B. Philosophers
C. Geologists
D. Astronomers
E. None of the above
A

C. Geologists

17
Q 
Quiz Q:
British theologian who proposed that populations increase exponentially while food supplies increase arithmetically.
A. Malthus
B. Wallace
C. Hutton
D. Lamarck
E. None of the above
A

A. Malthus

18
Q 
Quiz Q:
The approximate age of the Earth:
A. 4.5 million years
B. 4.5 billion years
C. 4,500 years
D. 4.5 hundred thousand years
E. None of the above
A

B. 4.5 billion years

19
Q 
Quiz Q:
Scientist who hypothesized that organisms evolved through the inheritance of acquired characteristics.
A. Wallace
B. Lamarck
C. Darwin
D. Malthus
E. None of the above
A

B. Lamarck

20
Q 
Quiz Q:
Evidence from comparative studies strongly suggests that the two additional middle ear bones (ossicles) possessed by mammals are derived from two small bones that form the hinge joint (articulation) between the upper and lower jaws of:
A. Sharks
B. Amphibians
C. Jawless fishes
D. Non-avian reptiles
E. None of the above
A

D. Non-avian reptiles

21
Q

Quiz Q:
All evidence from comparative anatomy suggests that the cartilaginous rings that support the trachea (windpipe) of mammals are all derived from the muscles and skeletal elements that once supported the:
A. Jaws of reptiles
B. Jaws of fish
C. Gills of fish
D. Middle ear bones (ossicles) of reptiles
E. None of the above

A

C. Gills of fish

22
Q 
Quiz Q:
The geologist who proposed what has become known as the doctrine of uniformitarianism:
A. Lyell
B. Malthus
C. Wallace
D. Lamarck
E. None of the above
A

A. Lyell

23
Q

Quiz Q:
Which of the following would NOT be considered vestigial structures?
A. The pelvic bones of some whales
B. The flippers of a dolphin
C. The pelvic bones of some snakes
D. The human coccyx
E. All of the above would be considered vestigial structures

A

B. The flippers of a dolphin

24
Q 
Quiz Q:
In the mathematical formulation of the Hardy-Weinberg Law, q represents the frequency of the:
A. Dominant alleles 
B. Recessive alleles
C. Homozygous dominant genotypes
D. Homozygous recessive genotypes
E. Heterozygous genotypes
A

B. Recessive alleles

25
Q 
Quiz Q:
The term differential reproduction provides a working definition of:
A. Reproductive Isolation
B. Random mating
C. Genetic Recombination
D. Natural Selection
E. None of the above
A

D. Natural Selection

26
Q

Quiz Q:
Biological species are groups of actually or potentially interbreeding natural populations that:
A. Can be easily distinguished on the basis of their anatomy
B. Are reproductively isolated from other such groups
C. That are the products of recent speciation events
D. Have arisen by adaptive radiation
E. None of the above

A

B. Are reproductively isolated

27
Q 
Quiz Q:
In sexually reproducing organisms, existing genetic variation is amplified by:
A. Natural Selection
B. Genetic recombination
C. Random mating
D. Genetic drift
E. None of the above
A

B. Genetic recombination

28
Q 
Quiz Q:
Genetic drift involves changes in gene frequency in small populations due to:
A. Random mating
B. Non-random mating
C. Sampling error
D. Natural selection
E. None of the above
A

C. Sampling error

29
Q 
Quiz Q:
In the mathematical formulation of the Hardy-Weinberg Law, p2 represents the frequency of the:
A. Dominant alleles
B. Recessive alleles
C. Homozygous dominant genotypes
D. Homozygous dominant genotypes
E. Heterozygous genotypes
A

C. Homozygous dominant genotypes

30
Q 
Quiz Q: 
Albinism is caused by a recessive allele. In Asian tigers, approximately one out of a hundred cubs are born albino.
Assuming that this trait is in Hardy-Weinberg equilibrium what would be the frequency of the recessive allele in this population?
A. 0.90
B. 0.10
C. 0.81
D. 0.18
E. None of the above
A

B. 0.10

Biology 105 (30 decks)

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