Concept explainers
(a)
Interpretation:
The mRNA sequence formed from DNA template
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 mRNA sequence formed from DNA template
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
The mRNA sequence formed from DNA template
Concept Introduction:
Refer to part (a).
(d)
Interpretation:
The mRNA sequence formed from DNA template
Concept Introduction:
Refer to part (a).
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Connect 1-Semester Online Access for Principles of General, Organic & Biochemistry
- 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_forward25-38 Where is rRNA located in the cell?arrow_forwardThe codon UAA stops protein synthesis. Why does the sequence UAA in the following stretch of mRNA not cause any problems?arrow_forward
- Is 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_forwardDoes the term gene expression refer to: (a) transcription, (b) translation, or (c) transcription plus translation?arrow_forwardSOURCE: GENERAL ORGANIC AND BIOLOGICAL CHEMISTRY by Smith 4th Editionarrow_forward
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