Which is a byproduct of photosynthesis?
a. water
b. light
c. glucose
d. oxygen
e. carbon dioxide
d
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In a mammal that you are studying, blood sodium levels are decreasing sharply. To correct this problem, which hormone might you try to administer?
A. cortisol B. aldosterone C. estrogen D. antidiuretic hormone E. testosterone
How does tryptophan, the end product of the trp operon, function in the regulation of the operon?
A) Trp binds to and inhibits the repressor, thus allowing transcription of the operon. B) Trp binds to and activates the repressor, which then binds to DNA to allow transcription of the operon. C) Trp binds directly to DNA and inhibits transcription of the operon. D) Trp binds to and changes the conformation of the repressor, which can then bind DNA and block transcription of the operon.
How does facultative neoteny in other species support the paedomorph advantage hypothesis for axolotls?
What will be an ideal response?
In bacteria, synthesis of long chain polysaccharides, such as starch and glycogen, have glucose donated to the end of the growing chain by ________.
A. UDPG B. ADP-glucose C. UTP-galactose D. ATP-mannose