Concept explainers
Introduction:
DNA is a genetic material, consisting of a long stretch of
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- Can you spell your name (or someone else's) using the one-letter amino acid abbreviations? If so, construct an mRNA sequence that encodes your "protein" name.arrow_forwardA gene contains 30% thymine. What is the percentage of pyrimidines present in this segment? Explain.arrow_forwardplease identify structure information about this gene which is adgrg1/gpr56. You can identify anything about the molecule including chains, atoms, etc.arrow_forward
- BamHI cut sequence: G//GATCC and each sequence is 250 nucleotides long. How many DNA segments would be created by cutting the normal gene with BamHI?arrow_forwardThe (blank) gene is constitutively active (always making protein).arrow_forwardThe human genome has approximately 30,000 genes, but human cells can produce over 100,000 different polypeptides. Explain how this is possiblearrow_forward
- How many base-pairs would have to be deleted in a mutational event to eliminate a single amino acid from a protein and not change the rest of the protein? You must enter a whole number (no text)arrow_forwardFor the following sequence, what is the Tm? 5'-AGCTACGATCAGGTCA-3'arrow_forwardThe 20 different amino acids in the protein are normally coded by ------ nucleotides. * 60 61 62 63arrow_forward
- A normal hemoglobin protein has a glutamic acid at position 6; in sickle-cell hemoglobin, this glutamic acid has been replaced by a valine. List all the possible mRNA codons that could be present for each type of hemoglobin. Can a single base change result in a change from Glu to Val in hemoglobin?arrow_forwardThe protein encoded by the cystic fibrosis gene is 1480amino acids long, yet the gene spans 250 kb. How is thisdifference possible?arrow_forwardHuman Chromosome 22 (48 × 106 nucleotide pairs in length) has about 700 protein-coding genes, which average 19,000 nucleotide pairs in length and contain an average of 5.4 exons, each of which averages 266 nucleotide pairs. What fraction of the average protein-coding gene is converted into mRNA? What fraction of the chromosome do these genes occupy?arrow_forward
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