MDCAT Biology MCQ #904

During transcription, an RNA molecule is formed whose length varies depending on the size of the gene being copied. Which RNA is this?

MDCAT Biology MCQ #904

  1. Question 1

    Q1. During transcription, an RNA molecule is formed whose length varies depending on the size of the gene being copied. Which RNA is this?

    • A) mRNA
    • B) tRNA
    • C) rRNA
    • D) snRNA

    Answer: mRNA

    Explanation: mRNA length is directly proportional to the gene size; tRNA has a fixed small size (75-90 nucleotides) regardless of the protein.