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BACE written/practical exam | Questions And Answers Latest {} A+ Graded | 100% Verified
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BACE written/practical exam | Questions And Answers Latest {} A+ Graded | 100% Verified
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BACE written/practical exam | Questions And Answers Latest {2024- 2025} A+ Graded |100% Verified
after successful bacterial transformation with plasmid DNA, you plan to isolate the plasmid DNA from
the genomic DNA using a miniprep. what should you not do? - use water to precipitate and wash DNA
how would you describe a tertiary protein structure? - the three dimensional shape of the polypeptide
chain once is folded
what is true about about protein synthesis? - transfer RNA (tRNA) molecules that carry amino acids
you observe an unknown cell under a microscope. a nucleus is visible. what kind of cell is it? - eukaryotic
under normal physiological conditions, the cell's plasma membrane prevents exogenous nucleic acids
from entering the cell. this is because the membrane is: - impermeable to charged substances
what diffuses from the plant shoot tips to cause cell differentiation? - hormone
what is the gram stain procedure in order? - crystal violet as stain, iodine as mordant, alcohol as
decolorizing agent, gram safranin as counter stain
in the ABO blood type system, what is the universal donor? - type O
describe macrophage - draw immune cells to infection site, causing inflammation
describe t-cells - process and present antigens on their cell surfaces
describe b-cells - produce antibodies
describe antibodies - bind and label pathogens
, to start the process of transcription, RNA polymerase binds to the ________________ to initiate mRNA
synthesis - operon
utilizing a patient's own cells to produce a novel drug or medical treatment is called? - personalized
medicine
monoclonal antibodies are derived from the fusion of tumor cells and B cells, which are then grown in
cell culture. what is this technique called? - hybridoma technology
what technique would you use to distinguish a GMO-containing food from a non-GMO-containing food?
- PCR
golden rice is a rice variety genetically engineered to produce beta-carotene, a precursor of vitamin A.
what is not a benefit? - encouraging crop biodiversity
what is an ethical use of genetic screening? - developing personalized medical treatments
prior to testing in humans, a new drug candidate is tested for safety what regulatory practices? - cGLPs
what is correct in regards to clinical trials? - the emphasis of a Phase I clinical trial is on treatment safety
When a co-worker wears nitrile groves out of the lab, what is the appropriate action? - notify the co-
worker to not wear gloves outside the lab
you notice a tear in the packaging of a disposable loop that you are about to use for an experiment.
what is the correct response? - discard. the content and packaging is compromised and the risk of
contamination is high
what is a technique for harvesting bacteria from overnight liquid culture? - streaking
when is it acceptable to aseptically transfer bacteria without wearing gloves? - it is never acceptable
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