Question

what is tRNA ??...........??

Answer 1

A transfer RNA (abbreviated tRNA and formerly referred to as sRNA, for soluble RNA) is an adaptor molecule composed of RNA, typically 76 to 90 nucleotides in length, that serves as the physical link between the mRNA and the amino acid sequence of proteins.

Answer 2

tRNA is one of the parts of the bridge that connects genes to traits. These molecules are attached to amino acids, the subunits that when linked together form a protein. When a protein is needed, another kind of RNA, called messenger RNA (mRNA), is constructed to have the same code for that gene that is written in the DNA. The mRNA then meets up with a large protein-RNA molecule called a ribosome. At the ribosome, the code written on the mRNA is read in 3-letter segments, and those 3 letters are matched to corresponding letters found on tRNA molecules. At the ribosome, the mRNA code is paired up with the matching tRNA code, and the protein attached the tRNA is detached and added to the growing protein strand.After this, the tRNA itself detaches from the ribosome/mRNA, and the next 3-letter code is read, and so on.