The sugar component of RNA and DNA nucleotides are synthesized
A. as deoxyribose and then changed to ribose.
B. as ribose and then changed to deoxyribose.
C. separately.
D. using the Calvin cycle.
E. as deoxyribose and then changed to ribose AND using the Calvin cycle.
B
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a. one b. two c. three d. four e. five
Which stage(s) is (are) the diploid sporozoite
stage(s) of the Plasmodium (malaria) parasite? a. A b. B c. C d. A and B e. none of these
Which one of the following statements is TRUE regarding the water on Earth?
A) When humans divert water from one region to another, they always ensure that it does not have an effect on normal migration patterns of other species. B) Most of the water on Earth is frozen in glaciers and ice caps. C) Residents of the less industrialized countries typically use more water than residents in industrialized countries. D) Some semiarid and desert regions of the world have reached carrying capacity for humans due to the shortage of water. E) Water is considered a renewable resource because it is plentiful in all regions of Earth.
Human chromosome 3 is classified as a(n)
a. sex chromosome. b. sister chromatid. c. autosome.