Indicate whether each of the following descriptions better applies to phytochromes (P), cryptochromes (C), or phototropins (T). Your answer would be a four-letter string composed of letters P, C, and T only, e.g. TPCC.
( ) They respond to red light.
( ) They are found in animals as well as in plants.
( ) They are flavoproteins.
( ) They are dimeric, cytosolic serine/threonine protein kinases that are normally activated by autophosphorylation.

Question

Indicate whether each of the following descriptions better applies to phytochromes (P), cryptochromes (C), or phototropins (T). Your answer would be a four-letter string composed of letters P, C, and T only, e.g. TPCC.
( )	They respond to red light.
( )	They are found in animals as well as in plants.
( )	They are flavoproteins.
( )	They are dimeric, cytosolic serine/threonine protein kinases that are normally activated by autophosphorylation.

Quizplus · Accepted Answer

Phytochromes are cytosolic serine/threonine protein kinases that are activated by red light. Cryptochromes are flavoproteins that are sensitive to blue light. They are found in animal as well as in plant cells.

Indicate Whether Each of the Following Descriptions Better Applies to Phytochromes