Скачать с ютуб Genetic Code Fully Explained | Codon | Class 12 в хорошем качестве

Genetic Code Fully Explained | Codon | Class 12

Hi Everyone! Welcome To My Channel "Ali Academy Biology Lectures" About This Video ........................ In This Video Lecture You Will Learn Basic Concept Of Genetic Code Genetic code is a combination of 3 nucleotides, which specify a particular amino acid. as nonsense codons. These codons are usually present at the end of the gene and occur in proteins. With four DNA nucleotides (G,C, T and A ) only 42 or 16, diferent pairs 43 or 64 diferent combinations of three, more than enough to code for the 20 amino punctuation between the three nucleotide units. using them to synthesize a protein or aminoacyl-tRNA complexes in cell free systems. ‘ of nucleotides could be formed. However, these same nucleotides can be arranged in hence are also called stop codons. Every gene starts with initiation codon AUG, which acids. The genetic code is a triplet code and the reading occurs continuously without three codons UAA, UAG and UGA do not code for any amino acid and hence are known Khorana tested all the 64 codons by making artiicial mRNAs and triplet codons and There are three nucleotides in .a codon, because a two nucleotide codon would not yield enough combinations to code for the 20 diferent amino acids that commonly After Crick’s initial experiments, Marshall Nirenberg, Philip Leader and Har Gobind The full genetic code was determinal during m id 60s. Out of 64 codons, encodes the amino acid methionine. The genetic code is universal. It is the same in almost all the organisms. For example AGA not that universal. For example UGA codon is normally a stop codon but, in mitochondria has been studied. Because of the universality of codon, the genes can be transferred and AG A and AGG for termination of protein synthesis is instead of arginine. Thus it from one organism to another and be successfully transcribed and translated in their speciies arginine in bacteria, in humans and all other organisms whose genetic code it reads as tryptophan. Likewise AUA was read as methionine instead of isoleucine new host. The study of genetic code of mitochondrial DNA however, showed that genetic code is appearsthatgenetic code is not quite universal. About This Channel..................... I make these videos cause I love to draw and connect the complexity of science and medicine into art. I'm not saying. I'm 100% correct in all my videos, but I do try to obtain the information from credible sources. One-stop destination for all biology lectures. _ students in class 11, 12 or appearing for competitive medical exams ( NMDCAT ) will find it very beneficial _ The videos are categories under various heading to make the students life simplified Visit My Other Channel Playlist ..................... NMDCAT PART 1:    • New 1st Year Biology   NMDCAT PART 2:    • New 2nd Year Biology   Class 11th Lectures:    • New 1st Year Biology   Class 12th Lectures:    • New 2nd Year Biology   Class 10th Lectures:    • Matric Biology   Subscribe My Channel:    / aliacademya7r   Social Link........................ Instagram: https://instagram.com/ranaalibiologis...