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Q. How are amino acids brought to the cellular site where translation takes place? What is an anticodon?
Amino acids are brought to ribosomes by RNA molecules known as transfer tRNA, or RNA. One tRNA associated to its specific amino acid binds by a special sequence of three nucleotides to an mRNA codon exposed in the ribosome. This sequence in the tRNA is known as anticodon the tRNA anticodon must be complementary to the mRNA codon to which it binds, according to the rule CG, A- U. The ribosome then slides along the mRNA molecule a process called translocation to expose the following codon to the binding of other tRNA. When amino acids corresponding to neighboring codons bind by peptide bond the first tRNa is liberated.
Explain Balanus The realised niche of Balanus is the same as its fundamental niche Lower limits: as for fundamental niche. Upper limits: as for fundamental niche
Rhythmic fluctuations in the abundance and activity of cell-cycle control molecules pace the events of the cell cycle. • Kinase - a protein which activates or deactivates another
Fatty acids have four main biological roles: 1. They are used to create sphingolipids and glycerophospholipids which are necessary elements of biological membranes; 2. Nume
Explain Acyclovir Available in topical, oral, and intravenous (IV) formulations, acyclovir is used to treat herpes simplex virus (HSV) and varicella-zoster virus (VZV) infectio
Q. Since the visual images are projected in an inverted manner on the retina why don't we see things upside down? Since the crystalline lens is a convex spherical lens it forms
What is the stage of the cardiac cycle during which the ventricles are filled? The filling of the ventricles with blood happens during diastole. The Circulatory System - Ima
How Primarily Energy Deficiency cause PEM? Surveys on preschool children in different parts of the country reveal that PEM is primarily due to dietary energy deficiency arising
Formation of Blastopore The slit such as opening of the initial groove is the opening of the developing blastopore and its dorsal rim is termed as the dorsal lip of blastopor
The second maturation division of the mammalian ovum occurs: 1. Shortly after ovulation before the ovum makes entry into the Fallopian tube 2. Until after the ovum has been p
The main constituents of food are carbohydrates, lipids, and proteins but they are found in complex forms that cannot be directly utilized by the body. Hence, they are broken down
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