The saguaro cactus flowers in the
a. dry period, which is April–June.
b. dry period, which is July–August.
c. wet period, which is April–June.
d. wet period, which is July–August.
A
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Topoisomerase functions by ____
a. creating cuts in the DNA to relieve over-twisting and strain ahead of the replication fork b. binding DNA polymerase to hold it tightly to the template DNA c. unwinding the DNA double helix to expose the template strands for replication d. binding the newly synthesized DNA to re-twist it into a double helix after replication e. reading the DNA template and synthesizing a complementary strand of DNA
A muscle ____________________ is a sudden, isolated involuntary contraction. Fill in the blank(s) with the appropriate word(s)
During glycolysis, what is the net gain of ATP molecules produced from one glucose molecule?
A) 36 B) 4 C) 34 D) 2 E) No ATP molecules are produced during glycolysis.
If humans had 25 amino acids instead of 20 amino acids then how many aminoacyl tRNA synthetases would humans have?
A) 4 B) 25 C) 3 D) 75 E) 20