Phase ________ trials occur when a drug is tested on individuals with a disease to determine the effectiveness of a drug in treating a disease
A) I
B) II
C) III
D) IV
E) V
B
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Explain how dicer and miRISC are involved in the production and function of miRNAs
What will be an ideal response?
The Hershey and Chase experiments, in which radioactive phosphorus (32P) and radioactive sulfur (35S) were used,
demonstrated that ____.
a. DNA labeled with 35S and proteins labeled with 32P can be traced over the course of an experiment b. DNA labeled with 32P is transferred from the bacteriophage to the virus c. proteins labeled with 35S become deactivated and unable to be transferred d. bacteriophages transfer their DNA, not their coat proteins, into their hosts e. DNA may be the hereditary material, although bacteriophages transfer both DNA and proteins into their hosts
Which of the following is true about the enzyme telomerase?
a. It can re-establish telomere length. b. It is found only in adult cells. c. It is responsible for telomere shortening. d. It may speed up the aging process. e. It is expressed at low levels in cancer cells.
Colchicine is an alkaloid derived from plants. What is its effect on chromosome behavior?
What will be an ideal response?