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Author Question: Which of the following statements about a DNA molecule is incorrect? A) All DNA molecules are ... (Read 53 times)

mspears3

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on: Aug 27, 2018
Which of the following statements about a DNA molecule is incorrect?
 
  A) All DNA molecules are made from a repeating unit consisting of a phosphate group, a sugar group, and an amine base.
  B) Complementary base pairs in DNA molecules are held together by hydrogen bonds.
  C) Normal DNA is double-stranded and helical in shape.
  D) Complementary bases in DNA molecules are held together by covalent bonds.

Question 2

0.024 moles of nitrogen gas occupy 4.0 L at 0.90 atm pressure. What will be the final volume if the container is allowed to expand and the pressure is reduced to 0.30 atm while the temperature is kept constant?
 
  A) 1.33 L
  B) 3.6 L
  C) 6.0 L
  D) 12 L


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SAUXC

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Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

D


mspears3

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Reply 2 on: Aug 27, 2018
Thanks for the timely response, appreciate it

xiaomengxian

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Reply 3 on: Yesterday
Gracias!

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