Biomed Tech Ex 2 Exam 2 Flashcards
Ruminants are the first food animals to be domesticated in human history, which includes what 3 animals?
Pigs, sheep, and goats
Miacidae family (origin of carnivores) started to exist around how many million years ago?
62 million years ago
Which one of the following animal has the most number of chromosomes?
A. tiger
B. cheetah
C. dingo
D. artic fox
E. cat
C. dingo
Which state produces the most domesticated sheep in U.S.?
Texas
Proper selection of hybridoma cells is required to produce
A. transgenic animal
B. knock in mouse
C. knock out mouse
D. monoclonal antibody
E. homologous recombination
D. monoclonal antibody
Advantage of using zebra fish as animal research model does NOT include
A. easy to perform gene transfer
B. genome content similar to human
C. embryo is transparent thus easy to observe developmental process
D. cheaper than mammalian models
E. rapid growth rate
B. genome content similar to human
Which one of the following animal species has NOT been cloned by the SCNT technology?
A. Ferret
B. Gaur
C. Pidgeot
D. Rabbit
E. Goat
C. Pidgeot
Discipline of nanotechnology often refers to the study of objects with the size between what nanometers?
1-100 nm
Gecko can climb up on a vertical wall due to the nano-adhesive mechanism known as
A. polar covalent force
B. ionic force
C. hydrogen bond
D. van der waals force
E. lotus effect
D. van der waals force
A particle with large surface-to-volume ratio is
A. high in density
B. easy to handle
C. more reactive
D. easy to form aggregate
E. chemically stable
C. more reactive
Lauric Acid (LA) is antimicrobial and is abundant in the
A. coconut oil
B. olive oil
C. mineral oil
D. fish oil
E. crude oil
A. coconut oil
Corns are introduced to
A. America in 15th century and Europe in 17th century
B. Europe in 17th century and Asia in 18th century
C. Africa in 17th century and Asia in 18th century
D. Europe in 15th century and Africa in 17th century
E. Asia in 16th century and Africa in 18th century
D. Europe in 15th century and Africa in 17th century
Which one of the following is NOT an example of genetic modified crop (GMO)?
A. Bt corn
B. Flavr Savr tomato
C. Nantes carrot
D. Roundup ready soybean
E. Golden rice
C. Nantes carrot
Which one of the following techniques is NOT a common method for plant transgenesis
A. gene guns
B. leaf fragment technique
C. somatic nuclear transfer
D. chloroplast engineering
E. antisense technology
C. somatic nuclear transfer
Concerns over GMP crops include all the followings EXCEPT for
A. patent infringement
B. pesticide resistance
C. superweeds
D. suicide seeds
E. human health risks
A. patent infringement
During suspended animation, tundra frogs
A. have no metabolic activity
B. have no heartbeat
C. have no ATP production
D. have no water content
E. all of the above
B. have no heartbeat
Effects of low temperature on the cell do NOT include
A. change of salt concentration in the solvent
B. extracellular ice formation
C. intracellular ice formation
D. thermal expansion
E. dehydration
D. thermal expansion
The process of freeze-drying is known as
A. condensation
B. vitrification
C. lyophilization
D. petrification
E. polymerization
C. lyophilization
Which one of the following federal agencies does NOT own a national crime lab?
A. CIA
B. FBI
C. ATF
D. DEA
E. USPS
A. CIA
“Every contact leaves a trace” is a quote from who?
Edmond Locard
Who is considered as the father of “bloodstain identification”?
Leone Lattes
Which one of the following is NOT an example of physical evidence in forensic science?
A. Fingerprint
B. Tire marks
C. Hand writing
D. Gun powder
E. Fire arms
D. Gun powder
In forensic DNA testing, the Restriction Fragment Length Polymorphism (RFLP) technique
A. requires less DNA
B. requires intact DNA fragments
C. requires taq DNA polymerase
D. requires molecular amplification
E. is sensitive to cross contamination
B. requires intact DNA fragments
For the purpose of DNA fingerprints analysis, STR stands for
A. short tether repeats
B. special tandem repeats
C. short tandem repeats
D. standard tandem replicates
E. short tandem replicates
C. short tandem repeats
The most common antifreeze for cryopreserving the mammalian cells is
A. glycerol
B. glucose
C. sodium
D. DMSO
E. urea
D. DMSO
List two techniques of modern biotechnology that can potentially revive the extinct animal species (hint: consider the strategies to de-extinct the Mammoth discussed in class)
Bt corn is a variant of maize that has been genetically altered to express one of more proteins from the bacterium Bacillus thuringenesis. Describe the purpose of bt protein (i.e. what the function of CRY protein) in the Bt corn and how it could adversely affect the environment and other species
Define and explain the difference between “hypoxia” vs. “anoxia”. Explain which condition can induce the suspended animation of c. elegans embryos.
A crime scene investigation team discovered the body of a corpse. Based on the following observations, please estimate the timeframe of the death (between x and y hours)
Body: cold and stiff
Lividity (positions of body): flexible
No discoloration of the skin
Eyes closed and cornea is cloudy
More to explain, but correct answer is 12-15 hours
List 3 advantages in which the nanoparticles can facilitate the drug delivery in treating cancers (i.e. think about how Abraxane is effective against pancreatic cancers).
