What is the main function of DNA helicase in DNA replication?
A) Unzipping the DNA double helix
B) Adding complementary DNA bases to the newly forming DNA strand
C) Proofreading the DNA molecule
D) Fusing DNA fragments together
A
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____ moves outward from the origin and breaks hydrogen bonds between DNA nucleotides
Fill in the blank with the appropriate word.
In animals, the pouch that forms at the entrance to the large intestine is the
A. gastrovascular cavity. B. rumen. C. cecum. D. anus. E. appendix.
What is the typical osmolarity of most body fluids in humans and other mammals?
a. about 225 mOsm/L b. about 300 mOsm/L c. about 1000 mOsm/L d. about 1500 mOsm/L
A statement such as "If human body temperature increases to a certain level, then critical proteins will be denatured" would most likely be associated with ________
A) a hypothesis B) a conclusion C) inductive reasoning D) deductive reasoning