Which of the following is not a feature commonly observed in ? sheets?
(a) antiparallel regions
(b) coiled-coil patterns
(c) extended polypeptide backbone
(d) parallel regions
(b)
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From what organism can green fluorescent protein (GFP) be isolated?
What will be an ideal response?
In the above diagram, the ____ is (are) labeled
with the letter "E".
a. esophagus b. larynx c. trachea d. epiglottis e. bronchi
Every living organism must have ____
a. at least one cell b. a nucleus c. a cell wall d. mitochondria e. oxygen
The "Upright Man" who possibly evolved in East Africa, first appears in the fossil record about 1.6 million years ago, and was a wanderer or nomad
A) founder effect B) Homo Habilis C) Latin binomial D) Australopithecus Africanus E) convergent evolution F) Ardipithecus ramidus G) Neanderthals H) chimpanzees I) Homo erectus J) astragalus