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Concept explainers
(a)
Interpretation:
The DNA template formed from mRNA sequence
Concept Introduction:
DNA is a molecule that is stranded with two polynucleotides into a double helix structure. The two polynucleotide strands are placed antiparallel to each other. It means that one strand starts from
In transcription, DNA strand separates and mRNA with DNA template is formed by the catalyzation of RNA polymerase. The mRNA molecule formed has base pairs opposite to DNA template.
RNA does not contain thymine base instead it has uracil base. Therefore, in this purine base adenine (A) is held with pyrimidine base uracil (U) by two hydrogen bonds. Whereas purine base guanine (G) is held with pyrimidine base cytosine (C) by three hydrogen bonds. These base pairs are denoted as
(b)
Interpretation:
The DNA template formed from mRNA sequence
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
The DNA template formed from mRNA sequence
Concept Introduction:
(d)
Interpretation:
The DNA template formed from mRNA sequence
Concept Introduction:
Refer to part (a).
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Chapter 17 Solutions
Principles of General Organic & Biological Chemistry
- Consider the following mRNA base sequence 5CUUCAG3 a. What dipeptide is coded for by this mRNA? b. What dipeptide is formed if a point mutation converts CUU to CUC? c. What dipeptide is formed if a point mutation converts CAG to AAG? d. What dipeptide is formed if a point mutation converts CUU to CUC and CAG to AAG?arrow_forwardConsider the following mRNA base sequence 5ACCCAC3 a. What dipeptide is coded for by this mRNA? b. What dipeptide is formed if a point mutation converts CAC to AAC? c. What dipeptide is formed if a point mutation converts ACC to ACU? d. What dipeptide is formed if a point mutation converts CAC to AAC and ACC to ACU?arrow_forwardAn hnRNA molecule contains three exons, with the middle one and one other being alternative exons. How many different mRNA molecules can be produced from this hnRNA molecule?arrow_forward
- Draw the complete structure of the ribonucleotide codon UAC. For what amino acid does this sequence code?arrow_forwardIs the trinucleotide in Problem 22-31 found only in DNA, found only in RNA, or found in both DNA and RNA? Explain the basis for your answer.arrow_forward-114 How could life have evolved if DNA leads to RNA which leads to protein, but it takes many proteins to replicate DNA and to transcribe DNA into RNA?arrow_forward
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