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)

Biology & Microbiology

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From what organism can green fluorescent protein (GFP) be isolated?

What will be an ideal response?

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In the above diagram, the ____ is (are) labeled

with the letter "E".

a. esophagus b. larynx c. trachea d. epiglottis e. bronchi

Biology & Microbiology

Every living organism must have ____

a. at least one cell b. a nucleus c. a cell wall d. mitochondria e. oxygen

Biology & Microbiology

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

Biology & Microbiology