In this article we will discuss about:- 1. Evolution of First Cell 2. Origin of Cell Membrane in First Cell 3. Evolution of Metabolism 4. Prokaryotic Cell. Evolution of First Cell: Early living cells were RNA life forms, self- replicating RNA covered by lipoprotein vesicles were the pre-prokaryotes, with time the proteins replaced the catalytic function of RNA, and DNA [...]
The below mentioned article provides a short note on the aminoacylation of tRNA. Role of Transfer RNA: Transfer RNA molecules play a key role in the process by delivering amino acids to the ribosome in an order specified by the mRNA sequence; this ensures that the amino acids are joined together in the correct order. Cells usually contain many species [...]
The following points highlight the four main processes to produce mRNA from RNA. The processes are: 1. Splicing 2. Capping 3. Polyadenylation 4. RNA Editing. Process # 1. Splicing: This process takes place in the nucleus and involves the removal of noncoding intron sequences from pre-mRNAs to produce mature mRNAs in which the coding sequences, corresponding to the exons, are [...]