Enzymes function to:
A. regulate messages between cells.
B. transport molecules and ions across membranes.
C. catalyze chemical reactions.
D. react with other enzymes to form a product.
Answer: C
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Without the work of Rosalind Franklin, Watson and Crick would not have known
A. which nucleotides could pair together. B. how many strands of DNA made up the molecule. C. the shape of the molecule. D. the width of the molecule. E. All of the above
The finches of the Galápagos islands evolved as a result of what type(s) of speciation?
A. allopatric speciation B. adaptive radiation C. sympatric speciation D. both allopatric speciation and adaptive radiation E. both sympatric speciation and adaptive radiation
p21 inhibits cell cycle progression by binding to and inhibiting
a. cyclin-dependent kinases. b. p53. c. ATM. d. Rb protein.
Although SSU rRNA gene sequencing has been fruitful in distinguishing between domains, recent phylogenetic approaches of sequencing ________ genes have revealed Eukarya-specific evolutionary histories
a. ATPase b. RNA polymerase c. tubulins d. ATPase, RNA polymerase, and tubulins