The human body temperature is 37 Celsius. If
a person goes outside on a very cold day, the
temperature will still be close to 37 Celsius.
This is an example of
a. pluripotency.
b. homology.
c. homeostasis.
d. differentiation.
e. regeneration
C
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One gene is able to encode information for different forms of a protein via ____
a. alternative splicing b. primary splicing c. secondary splicing d. mRNA mutations e. tRNA mutations
The process by which food is propelled through the digestive tract by alternating contraction and relaxation of smooth muscle is
A) elimination. B) secretion. C) chemical digestion. D) peristalsis. E) absorption.
You return home to find that your baby brother has scattered his toy trains and trucks all over the floor of your room. As you begin to pick up the toys and put them away, you realize that even though he is just a baby, he has clearly mastered:
A. the first law of thermodynamics. B. the second law of thermodynamics. C. potential energy. D. free energy.
From the list BELOW, which of the following is the most logical sequence of steps for splicing foreign DNA into a plasmid and inserting the plasmid into a bacterium?
1. Transform bacteria with recombinant DNA molecule 2. Cut the plasmid DNA using restriction enzymes 3. Extract plasmid DNA from bacterial cells 4. Hydrogen-bond the plasmid DNA to nonplasmid DNA fragments 5. Use ligase to seal plasmid DNA to nonplasmid DNA A) 4, 5, 1, 2, 3 B) 3, 2, 4, 5, 1 C) 3, 4, 5, 1, 2 D) 2, 3, 5, 4, 1 E) 1, 2, 4, 3, 5