Molecular Basis Of Inheritance Question 135
Question: Which of the following is the first thing that happens when a signal molecule acts on a target cell?
Options:
A) A transcription factor acts on the DNA.
B) The signal molecule binds to RNA.
C) A new protein is made in the target cell.
D) The signal molecule binds to a receptor.
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Answer:
Correct Answer: D
Solution:
[d] The first effect of any signal molecule must involve the binding of the molecule to a receptor.
BETA
