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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.
how many
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- The sequence below is a template strand sequence for a gene (a very short one!). Identify the start codon and the amino acid sequence of this gene. Write your answer in 3 letter amino acid code. Put a hyphen between each amino acid. You should also include a description of any working or steps you have taken to determine your answer. 5' AGTCAGCAAGAAGACATCAGTGTTCCCATCTGT 3' Paragraph V B I U A = 8⁰ + v 11.Below is a sequence of DNA. 5'-ttaccgataattctctctcccctcttccatgattctgattaaagaaggcgagaacgaaactatttgttaatacc-3' Using the one letter code for Amino Acids, what is the predicted AA sequence of the shortest ORF (from N to C-terminal end)? Using the one letter code for Amino Acids, what is the predicted AA sequence of the longest ORF (from N to C-terminal end)?Below is a sequence of DNA.5'-ttaccgataattctctctcccctcttccatgattctgattaaagaaggcgagaacgaaactatttgttaatacc-3' How many "reading frames" can be identified for this sequence? How many "open reading frames" can be identified for this sequence? What is the frame of the longest ORF? How many codons are in the longest ORF? What is the frame of the shortest ORF? How many AA are in the shortest ORF? Using the one letter code for Amino Acids, what is the predicted AA sequence of the shortestORF (from N to C-terminal end)? Using the one letter code for Amino Acids, what is the predicted AA sequence of the longestORF (from N to C-terminal end)?
- Which of the following RNA sequences is an inverted repeat and can form a stem-loop structure? What is the correct option from the choices below? GGUAGGCAUUACGGAUGG GGUAGGCAUUAGCCUACC GAGAGAGAUUAGAGAGAG GGGGGGGAUUAGGGGGGG GAGAGUGUAAGUGUGAGAWhat amino acid sequence will be generated, based on the following DNA codon sequence? Did you read this question carefully also? Are you certain? (You may list the three letter abbreviations for the amino acids listed below) DNA Sequence: TAC AAG CCC TAG GCG ATA АТС [a] Table 1. MRNA codons & associated amino acids Second base C G UUU Phe UUC UCU UAU UGU U Тyr UAC Cys UGC UCC Ser UCA UAA Stop UGA Stop A UUA Leu UUG UCG UAG Stop UGG Trp G CUU CCU CAU] His CAC CGU CUC C CUA CGC Leu Pro CCA Arg CGA CAA Gin CUG CCG CAG CGG AUU ACU AAU Asn AAC Thr AAA Lys AAG AGU Ser AGC AUC Ile ACC AUA AGA Arg AGG ACA AUG Met or start ACG GUU GCU GAU GGU Asp GAC U GÚC GCC Ala GCA GGC Val GUA Gly GAA GGA Glu GAG GUG GCG GGG G Cooriaht O Pearson Education. Inc Dublishina as Beniamin Cumminas First base (5' end) Third base (3' end)Translate the following mRNA nucleotide sequence into an amino acid sequence, starting at the first base: 5’ - UGUCAUGCUCGUCUUGAAUCUUGUGAUGCUCGUUGGAUUAAUUGU - 3’
- Translate the following mRNA nucleotide sequence into an amino acid sequence, starting at the second base: 5’ - UGUCAUGCUCGUCUUGAAUCUUGUGAUGCUCGUUGGAUUAAUUGU - 3’This is part of the Escherichia coli DNA sequence that contains an inverted repeat. (Note: top strand is the coding strand). 5'-AACGCATGAGAAAGCCCCCCGGAAGATCACCTTCCGGGGGCTTTATATAATTAGC-3' 3'-TTGCGTACTCTTTCGGGGGGCCTTCTAGTGGAAGGCCCCCGAAATATATTAATCG-5' (i) Draw the structure of hairpin loop that will be formed during the end of transcription. (ii) Describe the function of the hairpin loop during transcription.Part of a sequence of DNA from a person without this genetic disease is: TAG TAA AAA CCA CCC AGG Part of a sequence of DNA from a person with a genetic disease is: TAG TAA CCA CCC AGG The possible codons for some amino acids are shown in the table. Amino acid Codons glycine GGU GGC GGA GGG isoleucine AUU AUC phenylalanine UUU UUC serine UCU UCC UCA UCG Which amino acid is missing from a person with this genetic disease? serine glycine O phenylalanine isoleucine
- The Universal Genetic Code Table can be used to determine the gene product of a given nucleotide sequence. Universal Genetic Code Table Second Letter A G UUU } Phe UCU UAU } Tyr UGU } Cys UUC UCC UAC UGC Ser UUA } Leu UCA UAA STOP UGA STOP UUG UCG UAG STOP UGG Trp CUU CAU CCU CCC CGU } His CUC CAC CGC Leu Pro Arg CUA ССА CAA CGA } Gin CUG CCG CAG CGG AGU } Ser AUU ACU AAU } Asn AAC AGC AUC A AUA Ile ACC Thr ACA AAA AGA } Lys } Arg AUG Met ACG АAG AGG GUU GCU GAU GGU } Asp GUC GCC GAC GGC Val Ala Gly GUA GCA GAA GGA } Glu GAG GUG GCG GGG The table below represents the transcription of a short peptide sequence in a human cell. Place the amino acid abbreviations that correspond to the nucleotide sequence when it is translated. DNA TTG CTG TGT GAG GCA MRNA AAC GAC ACA CUC CGU Protein (реptide sequence) :: Ala :: Arg : Asp :: Asn :: Сys : Gln : Glu : Gly :: His : lle : Leu : Lys : Met : Phe :: Pro :: Ser :: Thr : Trp : Val Third Letter First LetterWhich of the following single-stranded DNA sequences is most likely to form a stem-loop structure? GGATCACGTTACCGCC TCATAGGCGCCGTTCA TAAGTACATTACCCCG GACCGTATGCACGGTCThe DNA in the coding strand below contains a short imaginary sequence for a short protein in Squibillus notables (imaginary bacterial organism). Indicate the mRNA and amino acid sequences. Label the 5' and 3' ends, the amino (N-terminus) and carboxyl (C-terminus) ends and start/stop codons, if present, as appropriate. 5'- ATGTACCTCGACGATCAAGGCAA -3'