Question

what is a major difference between messenger rna molecules and transfer rna molecules? messenger rna molecules contain ribose, and transfer rna molecules contain deoxyribose. messenger rna molecules carry coded information to the ribosomes, and transfer rna molecules carry amino acids to the ribosomes. messenger rna molecules function when they are double - stranded, and transfer rna molecules function when they are single - stranded. messenger rna molecules contain thymine, and transfer rna molecules contain uracil.

Explanation:

Both mRNA and tRNA are types of RNA and contain ribose, not deoxyribose. mRNA is single - stranded and carries genetic code from DNA to ribosomes for protein synthesis. tRNA is also single - stranded and brings specific amino acids to the ribosomes according to the mRNA code during translation. RNA contains uracil instead of thymine. So the key difference is in their functions during protein synthesis.

Answer:

Messenger RNA molecules carry coded information to the ribosomes, and transfer RNA molecules carry amino acids to the ribosomes.