Quiz Submissions - Quiz 5
Written: Jan 10, 2021 11:38 PM - Jan 11, 2021 12:22 AM
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What is a DNA mutation?
Question options:
a change to the RNA sequence of an individual
a method to keep all individuals of a species the same
a permanent change in the DNA sequence
a mistake in the DNA sequence that can be fixed
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Question 2
What direction do the two strands of DNA run?
Question options:
anti-parallel
perpendicular
transversal
parallel
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Question 3
What is the most common method for repairing nucleotide errors in DNA?
Question options:
nucleotide excision repair
mismatch repair
uracil base replacement
thymine dimers
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Question 4
What are the three components needed for protein synthesis?
Question options:
DNA, lysosome, exon
mRNA, DNA, ribosome
mRNA, tRNA, ribosome
DNA, nucleus, ribosome
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Question 5
How is it possible that each daughter cell during cell replication receives an identical copy of the DNA?
Question options:
DNA is not identical in every cell, so all daughter cells have different copies
DNA is replicated individually in each new cell after meiosis and mitosis
DNA is replicated during the synthesis phase of the cell cycle, prior to mitosis or meiosis
DNA is replicated following mitosis or meiosis, so is transferred after the new cells are formed
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Question 6
Which statement best describes prokaryotic chromosomes?
Question options:
Double-stranded, circular
Double-stranded, linear
Single-stranded, circular
Single-stranded, linear
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Question 7
A nucleotide includes all of the following parts EXCEPT?
Question options:
deoxyribose
carbon dioxide
nitrogenous base
phosphate group
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Question 8
Which nitrogenous base is present in RNA and not DNA?
Question options:
adenine
cytosine
uracil
guanine
thymine
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Question 9
Why does one strand of DNA replicate as a continuous strand, and the other in fragments?
Question options:
they are parallel, and DNA polymerase can synthesize from 5' to 3'
they are parallel, and DNA polymerase can synthesize in either direction
they are anti-parallel, and DNA polymerase can only synthesize from 5' to 3'
they are anti-parallel, and DNA polymerase can synthesize in either direction
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Question 10
What is an example of a genetically modified organism?
Question options:
a plant produced through traditional breeding
a natural cross between zucchini and acorn squash
mating of a horse and donkey to produce a mule
a red apple with a gene from another apple cultivar
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Question 11
What is an example of a transgenic organism?
Question options:
a tomato with a gene for freezing tolerance from fish
mating of a horse and a donkey to produce a mule
an heirloom tomato variety
a traditional breeding project where red and green apples are crossed
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Transgenic is the result of foreign DNA that is a different species being transferred by recombinant DNA. Review cloning and genetic engineering in Chapter 10.
Question 12
Gel electrophoresis separates charged molecules on the basis of what?
Question options:
size and charge
temperature and shape
contents and charge
shape and color
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Question 13
The introduction of a non-mutated gene at a random location to cure a disease by replacing a protein is called what?
Question options:
transgenic organism
gene therapy
reverse genetics
recombinant DNA
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Question 14
What is a basic definition of cloning?
Question options:
increasing the life expectancy of animals
increasing the number of plants
creation of a similar copy
creation of a perfect replica
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Question 15
Why was Dolly a Finn-Dorset and not a Scottish Blackface?
Question options:
enucleation occurred with a Scottish Blackface egg
the surrogate ewe was a Finn-Dorset
the nucleus came from a Finn-Dorset
the cytoplasmic donor was from a Scottish Blackface
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Question 16
What do the different bands in the same lane of an agarose gel represent?
Question options:
similar genetic make up
links of protein
different organisms
different size pieces
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Question 17
What is a plasmid with foreign DNA inserted referred to as?
Question options:
recombinant DNA
restriction DNA
foreign DNA
host DNA
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Question 18
Why are plants more difficult to make into transgenic species?
Question options:
presence of cell wall, preventing bacteria
mammals are regulated, plants are not
they are easier because they don't move
the presence of chloroplasts, so photosynthesis is running
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Question 19
Which is a good definition of genetic engineering?
Question options:
A process to determine the genetic makeup of an individual at a particular location in an individual's DNA
an organism that has another species' DNA inserted into its genome using genetic techniques
techniques of molecular biology that involves manipulation of genes
DNA that contains genes from more than one source
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Genetic engineering is a broad term that simply involves manipulation; it is used for other techniques. Review Biotechnology in the Weekly Lecture Lesson.
Question 20
Asexual reproduction where the circular chromosome replicates and then the cell membrane and cell wall partition the chromosomes into two new cells is know as what?
Question options:
Animal reproduction
Binary fission
Viral integration
Plant pollination
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Question 21
Which type of stem cell can only become one specialized type of stem cell, depending on the origin?
Question options:
somatic
embryonic
reproductive
induced pluripotent
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Question 22
In data measurement, what does precision refer to?
Question options:
Whether or not a measurement was performed correctly.
The number of significant digits in the solution of a mathematical problem
How close a measured value is from a standard or established value
How close a measured value is to previous measured values
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Accuracy refers to how close a measured value is from a standard or established value.
Question 23
A digital thermometer is calibrated to be accurate within +/- 0.1 ˚C. Two temperature measurements are then taken that show the temperature is 24.9 ˚C and 25.1 ˚C? Do these measurements agree?
Question options:
Not enough information is given
No
Yes
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Correct! Yes, the measurements agree. Based on the accuracy of the thermometer, the 24.9 ˚C measurement indicates the temperature can be 24.8 ˚C and 25.0 ˚C and the 25.1 ˚C measurement indicates the temperature can be 25.0 ˚C and 25.2 ˚C. The two measurements together tell us that the temperature is 25.0 ˚C.
Question 24
What are quantitative data measurements?
Question options:
Measurements that are appropriate for any type of variable
Measurements of numerical variables and are displayed as numerical values
Measurements that are appropriate in all experiments
Measurements of categorical variables and can be displayed as types or descriptions
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Quantitative data measurements are numerical variables – they provide data that answers questions like "how many" or "how often".
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