Which of these is a receptor for calcium ions?
-IP3
-PIP2
-G protein
-adenylyl cyclase
-calmodulin
calmodulin
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In white tigers, the absence of fur pigmentation is caused by a recessive allele that also causes the tigers to be cross-eyed. If two tigers heterozygous for this allele mate, what do you expect to see among the offspring?
A. 1/4 will be both white and cross-eyed, 3/4 will be orange with normal eyes. B. 1/4 will be white with normal eyes, 1/4 will be white and cross-eyed, 1/4 will be orange with normal eyes, and 1/4 will be orange and cross-eyed. C. 1/16 will be white and cross-eyed, 15/16 will be orange with normal eyes. D. 1/3 will be both white and cross-eyed, 2/3 will be orange with normal eyes. E. 1/4 will be orange with normal eyes, 3/4 will be both white and cross-eyed. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain? Gather Content · What do you already know about monohybrid crosses? Consider Possibilities · What other information is related to the question? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Moving from the lumen outward, what is the correct order of layers that make up the lining of the digestive tract?
A. mucosa, submucosa, circular muscle layer, nerve net, longitudinal muscle layer, serosa B. serosa, nerve net, longitudinal muscle layer, circular muscle layer, submucosa, mucosa C. submucosa, mucosa, circular muscle layer, longitudinal muscle layer, nerve net, serosa D. serosa, submucosa, mucosa, longitudinal muscle layer, nerve net, circular muscle layer E. mucosa, circular muscle layer, serosa, nerve net, longitudinal muscle layer, submucosa
What is the exome?
A) Sequences in between protein-encoding genes B) Protein-encoding genes C) All the DNA in a genome D) All of the proteins in a cell
Genetically, Methanococcus is most closely related to ____
a. bacteria b. fungi c. plants d. both bacterial and eukaryotic cells, although not closely related to either. e. animals