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Peptide bond formation is catalyzed by peptidyl transferase. The carboxyl end of the amino acid bound to the tRNA in this reaction and in the P site is uncoupled from the tRNA and becomes joined by a peptide bond to the amino set of the amino acid connect to the tRNA in the A site. A protein with peptidyl transferase activity has certainly not been isolated. The reason is now obvious; in E. coli at least, the peptidyl transfers activity is related with part of the 23S rRNA in the vast ribosomal subunit. Alternatively, peptidyl transferase is a ribozyme, a catalytic activity which resides in an RNA molecule.
Define each term and give an example of an application that uses the following: a. Biocompatible material b. Biodegradable material c. Biomimetic
Q. What is the pineal gland? The pineal gland also known as epiphysis or pineal body is situated centrally in the head. It secretes the hormone melatonin. A hormone produced at
Chloroplasts is the disk-like organelles with the double membrane found in eukaryotic plant cells; contain thylakoids and are the site of the photosynthesis. ATP is produced durin
Q. What are gonads? What are the male and the female gonads in humans? Gonads are the organs that produce gametes they contain the germ cells that undergo division and generate
B ov i n e leukemia Bovine leukemia, also known as bovine lymphosarcoma or leucosis, is a lymphoproliferative neoplastic disease of bovines. The virus belongs to genus Delt
what is respiration in animals ,its functions ,types of respiration
discuss why obelia is considered to be a special organism in zoology
Explain in brief Chitinous? A structure which is composed of chitin, a complex carbohydrate composed of linearly arranged Nacetyl-glucosamine units. Chitin is a characteristic
What is hydrogen bonds? Hydrogen Bonds : Hydrogen bonds form between polar molecules, such as water. Each water molecule has two positively charged hydrogen poles, and one ne
If a fragment of nucleic acid has a nucleotide sequence TAC can one assert that it is a codon or an anticodon? A nucleic acid having a TAC sequence surely is not tRNA, it is DN
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