In gene silencing, which type of RNA binds to mRNA, which is then destroyed by RISC proteins?
A. miRNA
B. tRNA
C. siRNA
D. rRNA
Answer: C. siRNA
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An advantage of YACs over other vectors in cloning human genes is that they ____
a. are taken up more readily by recipient cells b. have a higher capacity for carrying long DNA fragments c. are less likely to trigger cell rejection d. resemble a human chromosome more closely than do other vectors e. carry long regions of human-like DNA
In Griffith's experiments, what happened when heat-killed S-strain bacteria were injected into a mouse along with live R-strain bacteria?
A) Proteins released from the heat-killed S-strain killed the mouse. B) DNA from the live R-strain was taken up by the heat-killed S-strain, converting them to R-strain and killing the mouse. C) DNA from the heat-killed S-strain was taken up by the live R-strain, converting them to S-strain and killing the mouse. D) RNA from the heat-killed S-strain was translated into proteins that killed the mouse.
Chemoreceptors include
A) Pacinian corpuscles. B) hair cells. C) free nerve endings. D) rods. E) olfactory receptors.
Aerobic exercises do not increase skeletal muscle size, but they do cause various changes in the body. Explain what changes aerobic exercises initiate
What will be an ideal response?