All of the following are tenets of the cell
theory EXCEPT that
a. all organisms consist of one or more cells.
b. the cell is the smallest unit that retains the
characteristics of life.
c. since the first cell, each new cell is
descended from previous cells.
d. each cell is composed of products that it
manufactures.
e. cells may arise spontaneously under certain
laboratory conditions
E
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The process in which related DNA sequences from two different sources are exchanged is called
A) transduction. B) phage conversion. C) reversion. D) homologous recombination.
Leks are places where male:
a. hanging flies offer female flies meals of dead insects b. fiddler crabs wave their oversized claws to attract female crabs c. bison lock horns and wrestle for dominance d. midwife toads care for strings of eggs e. sage grouse display to attract females
How is the joining of amino acids catalyzed during translation?
a. by the enzyme peptidyl transferase b. by the enzyme reverse transcriptase c. by the enzyme polyadenylase d. by the enzyme RNA polymerase
Which of the following organisms is a prokaryote?
A) seaweed B) a slime mold C) an amoeba D) a bacterium