Genetics

AnsB. accumulates new mutations at higher rate. The function of deoxyribonucleic acid polymerases is re turn over in new nucleotides in the 3’ supplant sothat the price reduction of desoxyribonucleic acid chain grows in 5’ to 3’ direction. thus far desoxyribonucleic acid polymerases can also degrade nucleic acids and atomic number 18 called nucleases. Those that cleave from the end are called exonucleases. During replication those nucleotides that are in price positions should be removed from the exonuclease activity before the next nucleotide is added. This is called proofreading and protects the DNA from mismatches and if it does not function properly more errors or mutations occur. indeed the gene makes due to the failure of the in a higher place activity. 7.Ans. C. the answer is 1/9. There are 1/9 residuums of aminoacids is synthesized from this copolymer is Phenyl alanine. Phenylalanine is represented as UUC or UUU. For the UUU in that lo cation is 1/31/31/3= 1/27. Fro the UUC codon of this resembling aminoacid (Phe) there is a ratio of 1/31/32/3=2/27. So for the devil proportions (the sum of the two proportions ) is the phenylalanine ratio from the copolymer. Therefore. 1/27+2/27=3/27=1/9 and this 1/9 is the proportion of Phenylalanine. 9.Ans.D. There are 72 distinguishable eras ofDNA are present for the protein sequence of Met-Arg-Trp-Phe-Ser.

According to the genetic work out to the highest degree amino acid has more than one musical panache of sequences derived from the different sequences of informational RNA and thus different sequen ces of DNA. Accordingly virtually aminoaci! ds exhaust 2 ship canal of mRNA codons representation. Phnylalaline has 2 ways of codons which are UUC and UUU. And other aminoacids from the genetic table beat 6ways which we go the reading of mRNA from the table. Therefore for the above sequence we have 16126=72 ways of writing the protein. The sequence was Met-Arg-Trp-Phe-Ser and exchangeable the above calculation for each one way of mRNA codon is multiplied to each other and we shell 72 ways. 15kb _ 14kb _ 9kb _ 4kb 5kb+2kb +6kb +2kb= 15kb. This is how we get the sum of kbs for the...If you inadequacy to get a full essay, sight it on our website: BestEssayCheap.com

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