The best explanation for why a mouse develops into a mouse and not a human is
A. the genes are mostly the same but have been rearranged.
B. synteny has not been conserved.
C. most of the non-coding genes are different.
D. most of the coding genes are different.
E. gene expression differs.
Answer: E
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A beaker contains 100 milliliters (mL) of NaOH solution at pH = 13. A technician carefully pours into the beaker 10 mL of HCl at pH = 1. Which of the following statements correctly describes the result of this mixing?
A) The concentration of Na+ ions will rise. B) The pH of the beaker's contents will increase. C) The pH of the beaker's contents will be neutral. D) The pH of the beaker's contents will decrease.
Which nitrogenous bases are considered purines?
a. thymine and cytosine b. adenine and cytosine c. thymine and adenine d. adenine and guanine
Thin sheets of ________ form a cushion-like surface for moving joints
A) red bone marrow. B) cartilage. C) spongy bone. D) compact bone.
Burkholderia is a common (true/opportunistic) pathogen of patients with cystic fibrosis
What will be an ideal response?