the on a trna molecule pairs with three nucleotides on a mrna molecule

Nucleotides - Nucleotides are nitrogen containing organic compounds, which form the monomers of nucleic acids that are involved in the information transfer system of the cells. They are also involved in the mechanism of energy transfer in cells. A nucleotide is a compo..

It is smallest particle (of an element or compound), which is capable of independent existence. Molecules are formed by combination of atoms. Molecules are formed by combination of atoms If the molecule is made up of atoms of the same element it is said to be homo-atom..

The tRNA carries a specific amino acid from the amino acid pool to the mRNA on the ribosomes to form a polypeptide, hence its name. The tRNAs form about 15% of the total RNA of a cell. Its molecule is the smallest and has the form of a cloverleaf. It has four regions:..

A molecule having three bond pairs, and one lone pair of electrons, has these four pairs of electrons distributed tetrahedrally around the central atom. A molecule of AB 3 type has a triangular pyramidal shape and is called a trigonal py..

An example of sharing of one pair of electrons (single bond). Two atoms of hydrogen share one pair of electrons to form a molecule of hydrogen (Fig. 3.4). ..

An example of sharing of one pair of electrons (Single bond) Two atoms of chlorine share one pair of electrons to form one molecule of chlorine (Fig. 3.7). Note : ..

Six bond pairs in a molecule are distributed octahedrally around the central atom. A molecule having six bond pairs around its central atom has an octahedral shape. In a molecule of the type AB 6 , the six 'B' atoms are placed octahedrally around '..

Molecule having four bond pairs of electrons around the central atom, arrange their electrons tetrahedrally. These molecules have tetrahedral shapes and the four bond pairs are at an angle of 10928' with respect to each other. Some molecules which ..

It represents about 10 to 15% of the total RNA in the cell. It has the shortest molecule having only about 80 to 100 nucleotides. The polynucleotide chain is folded on itself to have the shape of a cloverleaf. The molecule has three lateral loops, a DHU loop, a t loop..

An oxygen atom has six electrons in its valence shell. As a result, it requires 2 more electrons to achieve the nearest noble gas configuration. When two oxygen atoms share two pairs of electrons this is achieved: ..