These two molecules are structural isomers. What is the difference between them?

A) The number of carbon atoms
B) The number of hydrogen atoms
C) The location of a double-bonded oxygen atom
D) Only one of them has a double bond between carbon atoms.


Answer: C) The location of a double-bonded oxygen atom

Biology & Microbiology

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Fill in the blank with the appropriate word.

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Threshold potential refers to the membrane potential required to:

A. open voltage-gated potassium channels. B. initiate an action potential. C. open voltage-gated sodium channels. D. initiate an action potential AND open voltage-gated sodium channels.

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It is now possible to analyze the genetics of the

new generation by a. fetoscopy. b. amniocentesis. c. chorionic villi sampling. d. preimplantation diagnosis. e. all of these.

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Streptococcus pyogenes produces (hemolysin/protein A/M protein) and thereby avoids phagocytosis

What will be an ideal response?

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