Answer:
<em>2</em>
Explanation:
<em>Without oxygen, a cell can extract a net gain of only 2 molecules of ATP from each glucose molecule.</em>
Researchers aboard Alvin discovered the presence of hydrothermal vents on the ocean floor.
Answer:
false. we cant see the whole galaxy from earth.
The operon is effectively the center of transcriptional control. In addition to its main structural genes, the operon houses an operator and a promoter. In front of the promoter lies a regulatory gene that produces repressor proteins. When a repressor is in its active state, it binds to the operator.
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