Extracellular matrix is typically composed of ____
a. polysaccharides and fibrous proteins
b. fibrous proteins and microtubules
c. polysaccharides and microfilaments
d. fibrous proteins and phospholipids
e. polysaccharides and phospholipids
ANSWER: a
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A researcher wants to create a mouse model for a disease, to allow her team to study possible therapies. The disease is known to be caused by a small deletion that removes a certain gene. Which type of mouse would be the best choice for this purpose?
A. Knockout mouse B. Knockin mouse C. Conditional knockout mouse activated by a drug D. Mutant derived by traditional forward genetics screen E. Tissue-specific gene knockout Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about transgenic mouse technology? 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?
Which vegetable was not produced from a single species using artificial selection?
a. broccoli. b. colewort. c. collard greens. d. kale. e. kohlrabi
RNA processing occurs when amino acids are removed from nascent proteins
Indicate whether the statement is true or false
Ion channels are _____ in the plasma membrane that allow _____ to pass through
glycoproteins; ions phospholipids; cholesterol ions; proteins proteins; ions