An experiment is conducted in which antidiuretic hormone (ADH) is administered at hour 3 to four subjects (A to D). In the following figure, which lines most likely reflect the response to ADH administration in a normal patient and in a patient with central diabetes insipidus?

#Question id: 9185

#Unit 9. Diversity of Life Forms

Plants are affected by an array of pathogens. Which of the following is a plant defense against disease?

#Question id: 18802

#Unit 13. Methods in Biology

#Question id: 604

#Unit 1. Molecules and their Interaction Relevant to Biology

An enzyme is irreversibly inhibited by diisopropylfluorophosphate (DFP). What does this show?

#Question id: 2876

#Unit 2. Cellular Organization

From the following set of statements regarding DNA topology, state whether each of the given statement is either True or False.

A.      The two strands of cccDNA can be easily separated without any breakage of bonds.

B.      Circular DNA molecules purified from bacteria and eukaryotes are usually negatively supercoiled.

C.      Interwound writhe and spiral writhe are topologically different.

D.      The organisms that live under extreme temperature conditions have been found to have positively supercoiled DNA.

E.      Negative supercoils can be thought of as a store of free energy that aids in processes that require strand separation.

#Question id: 23688

#Unit 13. Methods in Biology