One possible use of transgenic plants is in the production of human proteins, such as vaccines. Which of the following is a possible hindrance that must be overcome?
A) prevention of transmission of plant allergens to the vaccine recipients
B) prevention of vaccine-containing plants being consumed by insects
C) use of plant cells to translate non-plant-derived mRNA
D) inability of the human digestive system to accept plant-derived protein
A
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The reaction of ethanol fermentation is: pyruvate + NADH ? ethanol + CO2 + NAD+. Why would a yeast need to perform this reaction in the absence of oxygen?
A. To produce CO2 for respiration. B. To produce NAD+ allowing glycolysis to continue. C. NADH is necessary to reduce pyruvate to lactate. D. To produce NAD+ allowing the electron transport chain to run. E. To consume excess pyruvate that cannot enter the Krebs cycle.
Which of the following is involved during the process of translation?
a. terminator b. promoter c. ribosomes d. RNA polymerase
Water obtained from seawater desalination is much cheaper than water pumped from the ground
Indicate whether the statement is true or false
The Punnett square illustration below shows that
theoretically a. half of human sperm carry a Y chromosome. b. half of human zygotes are XY. c. all zygotes carry an X chromosome. d. gender depends upon which type of sperm fertilizes the egg. e. all of these are true.