13) Which nucleotide monomer is REPLACED by the nucleotide URACIL (U) when a gene (DNA) is...

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Biology

13) Which nucleotide monomer is REPLACED by the nucleotideURACIL (U) when a gene (DNA) is converted to an mRNA during theprocess of transcription?
A) Adenine B) Guanine C) Cytosine D) Thymine
14) Different RNA molecules have diverse roles in cellbiology; for example- mRNAs are the substrates for proteinsynthesis, which is performed by a large enzyme complex called theribosome- a cellular machine composed of proteins and:
A) siRNA B) rRNA C) tRNA D) All of these

15) The ribosome will convert an mRNA molecule into apolypeptide protein during a reaction called:
A) Polymerization B) Transcription C) Translation D)Nucleation

16) Proteins are produced as the ribosome â€œreadsâ€ through anmRNA molecule based on small sequences that occur in groups of 3nucleotides called:
A) Codons B) Exons C) Amino Acids D) Genes

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4.1 Ratings (661 Votes)

Answer 13 The nucleotides are monomer units of nucleic acids DNA and RNA The genetic information is stored in the form of base sequences It is nucleotide thymine T which is replaced by uracil U when a gene DNA is converted to an mRNA during the process of transcription Therefore option D Thymine is the correct answer The nucleotides adenine guanine and cytosine is not the right answer as these nucleotides are not replaced by any other nucleotide during the transcription process Answer 14 The genetic information See Answer

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