Here is a DNA sequence that codes for an extremely short protein. 3' TТАССТССССАТССАА 5' template strand 5' AATGCACGGCTAGCTT 3' non-template (or 'coding') strand a. Transcribe it to mRNA (write your answer in the text box with no spaces and starting at the 5' end of the MRNA, like this: ccaggcaa.) b. Using the reading frame that begins with a start codon, what polypeptide will this MRNA produce? (write your answer using the three letter amino acid codes, separated by a hyphen but without spaces, like this: phe-leu-thr-ser.) Second MRNA base A G UUU UCU UAU UGU Tyr Cys Phe UUC UC UAC UGC Ser UUA UCA UAA Stop UGA Stop Leu UUG UCG UAG Stop UGG Trp CU CCU CAU CGU His CUc c CAC CC Leu Pro Arg CUA CCA CAA CGA Gin G CUG ccG CAG AUU ACU AAU AGU Asn Ser AUC lle ACC AAC AGC C. Thr AUA ACA AAA AGA Lys Arg AUG Mt or start ACG AAG AGG GUU GCU GAU GGU Asp GUC G GCC GAC GGC Gly GGA Val Ala GUA GCA GAA Glu GUG GCG GAG GGG First MANA base (5' end) Third MRNA base (3' end)
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.
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