What is NOT a component of the translation machinery?
A. mRNA
B. tRNA
C. translation factors
D. ribosomes
E. protein polymerase
E. protein polymerase
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Answer the following statements true (T) or false (F)
1. Animals that do not control internal water concentration also typically do not control the concentrations of ions like sodium and potassium. 2. An animal that exhibits broad tolerance for changes in the salinity of its environment is said to be "euryhaline." 3. The materials in urine are ONLY those that are filtered from the blood or hemolymph and not reabsorbed by the body following filtration. 4. The filtrate that leaves the proximal convoluted tubule is much more concentrated than the blood in humans. 5. The blood supply to the loop of Henle also exhibits a countercurrent arrangement.
Which of the following matches between evolutionary evidence and biological disciplines is NOT
correct?
a. Pesticide resistance: Historical biogeography b. Forelimbs or all four legged vertebrates are homologous: Comparative morphology c. Short tails of African and Asian monkeys: Historical biogeography d. Gill pouches in embryos of four-limbed vertebrates: Comparative embryology e. Species on oceanic islands often closely resemble species on the nearby mainland:Comparative embryology
Endothermic animals use the majority of their energy to
a. digest. b. grow. c. move. d. reproduce. e. stay warm.
True or False: Gene therapy has been used for years to treat or cure sickle-cell disease.
Answer the following statement true (T) or false (F)