During the process of translation, mRNA decodes information from the original DNA master plan to build proteins in the ribosomes. During the transcription, mRNA is synthesized from DNA using the rules of complementarity. mRNA now carries the information for sequences of amino acids in proteins
The synonyms are hard,firm, set, frozen etc,<span />
Is is a present tense verb.
Past of is is was and future tense of is is will/shall.
The answer is B unlike. Hope this helps!