Fermentation involves the use of pyruvate and/or other organic molecules as electron acceptors.
Answer the following statement true (T) or false (F)
True
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In order for the scientists to artificially select Drosophila for their number of bristles,
In the laboratory, fruit flies (Drosophila) were artificially selected for the number of bristles on their bodies. One population (R) was selected for low numbers of bristles, a second population (S) for high numbers of bristles.
A. no change was seen; it's much too soon.
B. some slight increase of bristle numbers was already evident.
C. a vast, overlapping range of bristle numbers was seen.
D. a slight increase in bristles in S, a slight decrease in R, with a little overlap in the middle ranges.
E. a huge increase in S, a huge decrease in R, with no overlap whatsoever.
Which of the following statements about plasma membranes is INCORRECT?
A. They are composed of phospholipids. B. They have both integral and peripheral proteins. C. They are relatively rigid structures. D. They are composed of two leaflets of phospholipids. E. They function to separate the extracellular and intracellular environment.
A karyotype with an extra set of chromosomes indicates
A) aneuploidy. B) polyploidy. C) diploidy. D) haploidy.
The condition occurring when an organism has a 2n
+ 1 chromosome composition is known as a. monosomy. b. deletion. c. diploid. d. aneuploidy. e. both deletion and aneuploidy.