Which of the following statements is true of mRNA?
A) It is of a fixed size containing 750 nucleotides.
B) It is of a fixed size containing 75 nucleotides.
C) It is of a variable size, with an average of about 750 nucleotides.
D) It is of a variable size, with an average of about 75 nucleotides.

Question

Quizplus · Accepted Answer

mRNA is of a variable size, with an average of about 750 nucleotides. The exact size can vary widely, from a few hundred to several thousand nucleotides, depending on the gene being transcribed. Option A and B are incorrect as they suggest a fixed size, which is not true. Option D is also incorrect as an average mRNA size is approximately 750 nucleotides and not 75 nucleotides.

Which of the Following Statements Is True of MRNA