In the catabolism of arginine to generate ATP in Mollicutes, the first reaction is catalyzed by ________.
A. ATP synthetase
B. Pentose phosphate pathways
C. Embden-Meyerhof pathways
D. arginine deaminase
Answer: D
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The fact that humans have a relatively large number of mutations per genome per generation when compared to other organisms can be explained by:
A. humans are so complex we have multiple proteins doing the same job. B. human cells don't divide as often as those of other organisms. C. most of a human's DNA is noncoding, so most of the mutations are neutral. D. most of these mutations happen after reproduction, so they wouldn't be selected against. E. humans have multiple proteins doing the same job, and our cells don't divide as often as other those of other organisms.
Malarial parasites are able to evade the active immune response by
a. remaining inside the host cells throughout the whole infection, thereby avoiding exposure to antibodies in the bloodstream. b. secreting substances that block the binding and recognition of their protein by host B cells. c. changing their coat proteins so that the host antibodies in current production cannot bind to them. d. overwhelming the immune cells and antibodies by an enormous production of parasitic cells. e. interfering with the production of memory cells, so that subsequent infections are just as deadly as initial ones..
A woman is diagnosed as having the genetic disease known as Huntington's disease. It is a rare defect
caused by an autosomal dominant allele. The chance for any one of her eggs to carry the gene is a. dependent on the sex of the child. b. 1 out of 3. c. dependent on the genotype of the woman. d. 3 out of 4. e. 0.
What does temperature measure?
A) the potential energy in a substance B) how fast the molecules in a substance are moving C) the energy lost from a substance to its surroundings D) how much heat is being absorbed by a substance