OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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to transfer the code from the DNA in the nucleus to the ribosome in the cytoplasm
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to store and pass on genetic information
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to assist in building proteins by adding amino acids in the ribosome
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to create the energy needed for cellular processes
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Detailed explanation-1: -The role of mRNA is to carry protein information from the DNA in a cell’s nucleus to the cell’s cytoplasm (watery interior), where the protein-making machinery reads the mRNA sequence and translates each three-base codon into its corresponding amino acid in a growing protein chain.
Detailed explanation-2: -messenger RNA (mRNA), molecule in cells that carries codes from the DNA in the nucleus to the sites of protein synthesis in the cytoplasm (the ribosomes). The molecule that would eventually become known as mRNA was first described in 1956 by scientists Elliot Volkin and Lazarus Astrachan.
Detailed explanation-3: -tRNAs encoded by nuclear genomes are transcribed in the nucleus and are then exported to the cytoplasm where they perform their essential function of delivering amino acids to growing polypeptide chains as specified by mRNA codons.