Nitrogenous wastes are produced during normal metabolism of ________
Fill in the blank(s) with correct word
proteins
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In a population that is in Hardy-Weinberg
equilibrium, the frequency of the recessive homozygous genotype is 0.49. The percentage of the population that is heterozygous is a. 51. b. 49. c. 42. d. 7. e. 3.
During cellular respiration, where does the energy released from glucose go as it is metabolized into the low-energy compounds carbon dioxide and water?
A) The energy goes into ATP. B) The energy goes into lactic acid. C) The energy goes out of the cell as heat. D) The energy goes into electrons that directly power the cell.
Birds are different from reptiles in all of the following features except
A. their lack of teeth. B. the presence of a flight skeleton. C. endothermy. D. bipedalism. E. the presence of feathers.
DNA is constructed of
A) a single strand of nucleotides with internal hydrogen bonding. B) two complementary strands of nucleotides bonded A—C and G—T. C) two strands of nucleotides running in an antiparallel configuration. D) two strands of identical nucleotides in a parallel configuration with hydrogen bonds between them. E) None of the answers is correct.