Phenylalanine (Phe) is encoded by either UUU or UUC, while Tyrosine (Tyr) is encoded only by UAC and UAU. Given this, and given what you know about tRNA selection, will Phenylalanine be found in the resulting polypeptides? (Assume translation will happen even without a start codon; Also this is a bit tricky, so review the contents of the assay before answering.) Yes, in part because phenylalanine is also coded for by UUU Yes, because ribosomes select the amino acid regardless of the anticodon sequence Yes, for both of the reasons listed above. No, because it is no longer attached to the tRNA with the GAA anticodon
Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
Phenylalanine (Phe) is encoded by either UUU or UUC, while Tyrosine (Tyr) is encoded only by UAC and UAU. Given this, and given what you know about tRNA selection, will Phenylalanine be found in the resulting polypeptides? (Assume translation will happen even without a start codon; Also this is a bit tricky, so review the contents of the assay before answering.)
- Yes, in part because phenylalanine is also coded for by UUU
- Yes, because ribosomes select the amino acid regardless of the anticodon sequence
- Yes, for both of the reasons listed above.
- No, because it is no longer attached to the tRNA with the GAA anticodon
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