Regardless of the exact approach taken to recombinant DNA technology, one of the keys to successful cloning is choosing the right vector.
Answer the following statement true (T) or false (F)
True
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The sodium leak channels in photoreceptors are cyclic GMP-gated channels. What must occur during activation of photoreceptor cells by light?
A. Cyclic GMP levels are reduced. B. Cyclic GMP levels are increased. C. Cyclic GMP is exchanged for cyclic AMP. D. Cyclic GMP is exchanged for GTP.
Certain bacteria and fungi that are important in nutrient recycling because they release nutrients from dead organisms back into the ecosystem are
A) carnivores. B) detritus feeders. C) autotrophs. D) decomposers. E) recyclers.
Given these parts of the nephron:
1) collecting duct 2) distal convoluted tubule 3) loop of Henle 4) renal corpuscle Which of these sequences represents the correct order through which filtrate would move in the nephron during urine formation? A. 1,2,3,4 B. 1,3,2,4 C. 2,1,4,3 D. 3,4,2,1 E. 4,3,2,1
How is the yeast GAL gene control system unlike the E. coli lac operon?
a. GAL genes do not have a catabolite repression level of control, b. GAL genes are constitutively expressed. c. GAL genes are not induced by their substrate. d. GAL genes are transcribed when the cell has a sufficient supply of glucose. e. GAL genes are not expressed in a single polycistronic mRNA.