Schwann cells produce a carbohydrate-like insulating material called myelin.
a. true
b. false
Answer: b. false
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They get carbon from the environment
b. They obtain energy from the environment. c. They make their own food. d. They provide food for others. e. They do not need gases to make food.
Which of the following is true of embryo
cloning? a. It occurs all the time in nature. b. It involves the genetic contribution of two parents. c. It produces identical offspring. d. "Artificial twinning" is a laboratory application of the process. e. All of these are true
Vinblastine is a commonly used chemotherapy drug that acts by interfering with the assembly of microtubules. How does it likely target cancer cells?
A) by suppressing cyclins B) by inhibiting protein kinases C) by inhibiting DNA synthesis D) by denaturing myosin and preventing the cleavage furrow from forming E) by disrupting mitotic spindle formation
In bacteria, initiator tRNA carries formyl methionine.
Answer the following statement true (T) or false (F)