Miller and Urey's experiment was ground breaking because
A. this was the first example of an experiment being used that inserted oxygen into the
B. this was the first attempt to apply scientific experimentation to the quest for understa
Suppose you wanted to investigate ideas on how polymerization of prebiotic organic molecules
may have occurred on the early Earth. Which of the following scenarios might best be utilized
A. Mix some RNA nucleotides in water and heat them to b
DNA microarrays (gene chips) are only capable of monitoring the expression of one gene at a
Brooker - Chapter 18 #54
Learning Objective: 18-02-04 Explain what a DNA microarray is and how it is used to iden
14 homologous genes encoding globins (hemoglobin, myoglobin) in the human genome were
originally derived from a single ancestor that duplicated 500-600 million years ago. Which term
most adequately describes the relationship between these genes?
22. A scientist found an unweathered igneous rock that contained .025 g of potassium-40 and .075 g
of argon-40. The half-life of potassium-40 is 1.3 billion years. The rock would be estimated to be
A. 2.6 billion years old.
B. 0.050 billion years old.
10. Which of the following is true regarding transformed cells that are plated on growth media
A. Each colony began with one antibiotic resistant cell.
B. All cells in a single colony are resistant to the antibiotic ampicillin.
Which of the following statements about the differences between prokaryotic and eukaryotic
genomes is FALSE?
A. Prokaryotic genomes are less complex than eukaryotic genomes.
B. Prokaryotic genomes have centromeres, whereas eukaryotic genomes do not.
Topic: Origin of Life on Earth
You want to experimentally test the deep sea vent hypothesis in a laboratory. What would your
experimental set up need to include?
A. Hot H2S from the "vent" mixing with cold water
B. Cold O2 from the "vent" mixing with
Place these genes in their temporal order of expression from earliest to latest during Drosophila
A. Bicoid, Gap, Homeotic
B. Homeotic, Gap, Bicoid
C. Homeotic, Bicoid, Gap
D. These genes are not expressed at different times during develo
34. A researcher wants to introduce the human gene encoding tissue plasminogen activator (used to
dissolve blood clots) into a mammal so that the protein will be secreted into the milk of the
mammary gland. What is required for the researcher's success?
What type of science is a researcher performing if she is conducting experiments to try and
map the location of a gene on a particular chromosome?
A. functional genomics
B. structural genomics
D. functional genomics and proteomics
The _ can differentiate into stems, leaves, or flowers.
B. shoot meristem
C. basal region
D. central region
E. apical meristem
Brooker - Chapter 17 #31
Learning Objective: 17-03-01 Outline the stages
4. Which of the following is TRUE regarding plasmids?
A. Plasmids are small, usually a few thousand to ten thousand base pairs.
B. Plasmids are linear.
C. Plasmids are contained within the bacterial chromosome.
D. Plasmids are rarely found in prokaryotes.
You grow a culture of bacteria and split it into two culture tubes. One sample of bacteria you
treat with calcium and the other is not treated. When you transform both samples with a
plasmid, only the samples treated with calcium take up the plasmid.
45. Flowering plants originated during the
A. Permian period.
B. Tertiary period.
C. Devonian period.
D. Cretaceous period.
E. Jurassic period.
46. The "Age of Dinosaurs" occurred during which era?
Why is the production of transgenic plants somewhat easier than the production of transgenic
A. Plant cells are pluripotent.
B. Plant cells are more stable than animal cells.
C. Plant cells are totipotent.
D. Plant cells are more highly evolv
A. transcribe bicoid mRNA and then transport it to the embryo.
B. translate bicoid mRNA into protein.
C. induce the embryo to transcribe and translate bicoid mRNA.
D. transport Bicoid protein to the embryo.
E. translate bicoid mRNA into pr
22. Which of the following procedure-analyses is mismatched?
A. dideoxy terminationDNA sequencing
B. Southern blottingDNA gene detection
C. microarray analysesdifferential expression of mRNAs
D. gel electrophoresissize separation of nucleic acids or prote
Chapter 21 Key
The term evolution is used to describe
A. heritable changes in characteristics of a population from one generation to the next.
B. any change in an individual that can be observed.
C. changes in the number of individuals in a population
Toward the end of the Proterozoic eon, multicellular animals emerged. The first animals were
Brooker - Chapter 20 #42
Learning Objective: 20-02-04 De
The Miller and Urey apparatus produced hydrogen cyanide (HCN), formaldehyde (CH2O), and
glycine (an amino acid) in their first experiment. Why was it important that they use water vapour,
methane, carbon monoxide, ammonia and hydrogen as their reactant
Which of the following is a reversible post - translational covalent modification?
C. disulfide bond formation
D. phosphorylation and acetylation
E. acetylation and disulfide bond formation
What is the major difference between the endosymbiotic relationship theory and the symbiotic
A. In the endosymbiotic relationship theory the archaeon engulfs the smaller bacterium while in
the symbiotic relationship theory the arc
Which method would be best suited to examining the changes in gene expression that occur in
a single-celled organism throughout its life cycle?
B. microarray analysis
C. gene cloning
D. structural genomics
E. DNA sequencing
23. The gene (IGF1) that encodes a growth hormone has one allele (IGF1-A) that is found in small
dogs but not in dogs that are very large. What does this suggest about the body size of dogs?
A. Body size depends on how much growth hormone is produced duri
A researcher wants to clone a specific gene of interest. Why would he/she choose a viral vector
for introducing the gene of interest into a host cell?
A. A viral vector contains its own metabolic machinery and does not affect the host cell.
B. A viral
45. You cut a plasmid with a restriction enzyme that cuts it into three piecesone fragment is 240
base pairs, one fragment is 600 base pairs, and one fragment is 1200 base pairs. You carry out
electrophoresis of the digested sample. Which of the fragments
44. Exchange of genetic material among different species is called
A. homologous gene exchange.
B. horizontal gene transfer.
C. exon shuffling.
D. genetic recombination.
E. exon shuffling and/or genetic recombination.
45. Evolution at the genomic level in