Interacting systems of molecules enclosed in compartments called __________ evolved 3.8 billion years ago in living organisms.
A) organs
B) microspheres
C) mitochondria
D) cells
E) brains
D) cells
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What would be the consequence if an individual was homozygous for an IBP that could not bind iron but could bind to the IRE?
A. Unregulated transferrin receptor levels B. Increased degradation of ferritin C. Possible iron toxicity to the cells at levels of iron that would not normally be toxic to a cell D. There would be no predicted consequence to iron metabolism in the cell
Astrobiology is considered a sub-discipline of microbiology because
A. microbes are known to exist on other planets. B. all extraterrestrials known are microbial. C. life elsewhere in the universe is likely to be microbial. D. only microbes can reproduce under the extreme conditions in outer space.
If recombination frequency is equal to distance in map units, what is the approximate distance between genes A and B?
A) 3 map units B) 6 map units C) 15 map units D) 30 map units
The work of Oswald Avery, George Beadle, Edward Tatum and many others into the role of DNA laid the foundations of (microbial genetics/microbiology/recombinant DNA technology)
What will be an ideal response?