Which of the following can be synthesized from pyruvate in one step, allosterically inhibits pyruvate kinase, slowing the production of pyruvate by glycolysis

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#Question id: 9272

#Unit 6. System Physiology – Plant

The quantum yield of photosynthesis falls off drastically for far-red light of wavelengths greater than 680 nm, indicating that far-red light alone is inefficient in driving

photosynthesis, this effect is called

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#Question id: 12654

#Unit 6. System Physiology – Plant

unconjugated JA is hormonally active, many JA responses require activation of the hormone for optimal activity by conversion into an amino acid conjugate, such as

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#Question id: 5824

#Unit 8. Inheritance Biology

___ is a second mutation at a different location in the genome that compensates for the effects of an original, first mutation.

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#Question id: 15409

#Unit 8. Inheritance Biology

 A heterozygous trihybrid corn plant is testcrossed and the following progeny are produced (all traits are recessive to their wildtype alternative);

          booster                              6

          booster, silkless                  137       

          booster, liguleless, silkless      291

          liguleless                          142

          liguleless, silkless                  3

          silkless                            30

          booster, liguleless                  34

          wildtype                            339

What is the order of the loci on the chromosome? 

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#Question id: 10927

#Unit 7. System Physiology – Animal

A 62-year-old female arrives for her annual physical. She complains of itching in her hands along with headaches and vertigo. A routine complete blood count (CBC) shows red blood cells (RBCs) of 8.2 million/μl, white blood cells (WBCs) 37,000/μl, and platelets 640,000/μl. Her erythropoietin levels are lower than normal. The primary diagnosis would be