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Learning through Selina Class 8 Biology Solutions PDF is one of the best ways to ace the examination with high marks. As in the Solutions book, all questions of Class 8 Biology are explained in a stepwise manner.
28 lis 2016 · Transfer RNAs or tRNAs are molecules that act as temporary carriers of amino acids, bringing the appropriate amino acids to the ribosome based on the messenger RNA (mRNA) nucleotide sequence. In this way, they act as the intermediaries between nucleotide and amino acid sequences.
A mutation is found in a tRNA-encoding gene. The wild type allele produces a tRNA that recognizes the codon GAA, and is charged with the amino acid Glutamic acid. The mutant tRNA is still charged with Glu, but the anticodon is mutated such that it recognizes the codon TAA. What effect will this have on translation in these cells?
3 sie 2023 · Definition of tRNA- Transfer RNA or tRNA is a type of RNA molecule that helps to decode information present in mRNA sequences into specific proteins. tRNA molecule is a carrier of amino acid that brings appropriate amino acid to ribosome based on the codon present in mRNA sequence.
The solutions on Shaalaa will help you solve all the Selina ICSE Class 8 Biology questions without any problems. Every chapter has been broken down systematically for the students, which gives them fast learning and easy retention.
transfer RNA (tRNA): RNA molecule responsible for delivering amino acids to the ribosome. amino acids: The basic building block of a protein. There are 20 different amino acids, each has an amino group (NH 2) and a carboxyl group (COOH), but differs in its functional group (also known as side chain or R group).
Like mRNA, tRNA is a single strand with the bases U, A, C, and G. tRNA is a cloverleaf shape. tRNA has a slightly different structure to mRNA. The single strand of tRNA is folded up into a cloverleaf shape. tRNA has two attachment sites. At one end of tRNA, there is an attachment site for amino acids.
