1. True or False a) DNA bases, when coiled to histones, become inaccessible to RNA polymerase. b) Methylation silences the gene expression. c) Poly-A tail is added to the growing mRNA prior to translation.
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Q: Which of the following statements about the transcription process is correct?
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Q: 1. If the gene above is transcribed into a functional mRNA, a.) how many codons will be carried by…
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Q: Define the Post-translational modifications. ?
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Q: What serves as the template for making new MRNA?
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Q: What Determine the amount of mRNA that is available for translation ?
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Q: Describe three (3) ways in which the primary transcript is modified as it is converted to mRNA.
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Q: 1. a)What are the two types of ncRNA used in translation? b.) How is translation terminated when…
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Q: The mature m-RNA is capped by which of the following heterocyclic bases (or which of the following…
A: Transcription is a process through DNA is converted into mRNA.
1. True or False
a) DNA bases, when coiled to histones, become inaccessible to RNA polymerase.
b) Methylation silences the gene expression.
c) Poly-A tail is added to the growing mRNA prior to translation.
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Solved in 2 steps
- If an extra nucleotide is inserted in the first exon of the beta globin gene, what effect will it have on the amino acid sequence of the globin polypeptides? Will the globin most likely be fully functional, partly functional, or nonfunctional? Why?What are the three modifications made to pre-mRNA molecules before they become mature mRNAs, are transported from the nucleus to the cytoplasm, and become ready to be used in protein synthesis? What is the function of each modification?What would happen if any of the stages involved in the translation of DNA to protein were altered/irregular? What effect will this modification have on the protein?
- If a DNA sequence (exons and introns) and the regions upstream/downstream are normal -- but no mRNA is produced -- what could cause the result?1. a)What are the two types of ncRNA used in translation? b.) How is translation terminated when the ribosome reaches a stop codon?If the coding region of a gene (the exons) contains 2,100 base pairs of DNA, would a missense mutation causes a protein to be shorter, longer, or the same length as the normal 700 amino acid proteins? What would be the effect of a nonsense mutation? A sense mutation?
- Which DNA strand will serve as the template strand during the transcription of the RNA-coding sequence?Given the following stretch of mRNA, what would be the sequence of the corresponding non-template DNA? 5' - UUG-CAA-UCG-CAG-UGC-CGC-AUA-GAU - 3' Group of answer choices 3' - AAC-GTT-AGC-GTC-ACG-GCG-TAT-CTA - 5' 5' - TTG-CAA-TCG-CAG-TGC-CGC-ATA-GAT - 3' 5' - AAC-GTT-AGC-GTC-ACG-GCG-TAT-CTA - 3' 3' - AAC-GUU-AGC-GUC-ACG-GCG-UAU-CUA - 5' 3' - TTG-CAA-TCG-CAG-TGC-CGC-ATA-GAT - 5'What Determine the amount of mRNA that is available for translation ?
- what would happen if there were no 5' cap in order to make mRNA recognizable?a. If a single transition occurs in a codon that specifies Phe, what amino acids can be specified by the mutated sequence? b. If a single transversion occurs in a codon that specifies Phe, what amino acids can be specified by the mutated sequence? c. If a single transition occurs in a codon that specifies Leu, what amino acids can be specified by the mutated sequence? d. If a single transversion occurs in a codon that specifies Leu, what amino acids can be specified by the mutated sequence?1. a)how is it possible for such drugs to selectively kill bacterial cells and not our own cells? b)Provide an example of post-translational regulation of protein activity and explain the advantage of regulating each protein/process at the post-translational level instead of the transcriptional level.