Which of the following correctly defines transcription? 1#the making of a polypeptide with a specified order of amino acids using an RNAmolecule to provide the sequence information

2#the making of an RNAmolecule from a DNAstrand by the pairing of bases of RNAnucleotides with the complementary bases in DNA

3#the making of a new DNAmolecule by pairing of bases of DNAnucleotides with complementary bases in an existing DNA molecule

4#the making of a polypeptide with a specified order of amino acids using a DNA molecule to provide the sequence information

2. the making of an RNA molecule from a DNA strand by the pairing of bases of RNA nucleotides with the complementary bases in DNA

Explanation:

Transcription is the first step in the protein synthesis process. Overall, the central dogma of biology is DNA->RNA->protein. Transcription is that first step, DNA to RNA, and translation is RNA to protein: think of it like nucleic acids can just be transcribed, but nucleic acid to protein is like a whole different language, so it has to be translated.

Choice 2 best expresses this process: choice 1 is translation, choice 3 is DNA replication, and choice 4 isn't an accurate representation of any biological concept.

la transducción de señal ocurre cuando una molécula de señalización de fluido extracelular activa un receptor de superficie de la célula.