Multiple choice

mRNA is built by adding ?

  1. Complimentary DNA nucleotides

  2. Complimentary tRNA

  3. Complimentary rRNA

  4. Complimentary RNA nucleotides

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Messenger RNA (mRNA) is a polymer of RNA nucleotides. During transcription, RNA polymerase links complementary RNA nucleotides (A, U, C, G) together based on the DNA template.