SureDen
Crystalline Solids:
Amorphous solids are very useful but most of the solids are crystalline in nature due to thermodynamically favorable conditions
Molecular Asymmetry:-
A plane which divides an object into two symmetrical halves. Such that one half of the molecule is a mirror image of t
Classification of Proteins:-
(A). On the basis of Molecular Structure – On the basis of their molecular structure proteins a
Central dogma of molecular biology:
Francis Crick Proposed the central dogma of molecular biology. It stat
Isomerism
Definition of Structural Isomerism
When two or more organic compounds have the same molecular formula but dif
The maximum distance upto which the force of attraction between two molecules is appreciable is called molecular range (
tRNA – the adaptor molecule:
1) tRNA has an anticodon loop that has bases complementary to the code.
2) It also has an amino acid
The lac operon:
The lac operon: Lec operon is a transcriptionally regulated system. A polycistronic structural gene is regulated b
Atomic and molecular masses:-
The mass of an atom is very-very small before 1961, Hydrogen w
Isomerism:-
Complexes having some molecular formula but different structure are called structural Isomer and in such Insomer 3 – D Orientati
Classification of Drugs
On the basis of Pharmacological Action:- It is useful for docto
A coordinate bond is formed,When the shared electron pair is provided by one of the combining atoms.
The atom, which provides the electron pair is termed as the donor atom, while
the other atom, which accepts it, is termed as the
Zeroth Law of Thermodynamics.
If systems A and B are each in thermal equilibrium with a third system C, then A
Structure of functional group in carboxylic acid derivatives
The structure of the functional groups in acyl halide, acid anhydride, ester and amide
Ervin chargeff rules for base paring:
1. ADENINE + GUANINE = THYMINE + CYTICINE
General introduction of genetic material
Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are the two types of nucleic acids found in l
DNA: Deoxiribonucleic acid
DNA is a thread like polymer of deoxyribonucleotides. The length of DNA is defined as number of nucleotides present in i
RNA: Ribonucleic acid
Ribonucleic acid (RNA) was the first genetic material.
RNA behaved as a catalyst as well as genet
Difference between DNA and RNA
1) DNA consists deoxiribose sugar and RNA consists of ribose sugar.
2) RNA has ad
Discoveries regarding genetic marerial:
Transforming Principle
Frederick Friffith
DNA replication:
Duplication of one parental strand of DNA to form new daughter strand by following the law of semiconservativeness. And the newly
Translation:
Translation refers to the process of polymerization of amino acids to form a polypeptide.
Process of translation
Transcription:
The process of copying genetic information from one strand of the DNA into RNA is termed as transcription.
Genetic code and regulation of gene expression:
Genetic Code: The relationship between the sequence of nucleotid
Mutations:
Mutation is defined as the sudden inheritable change in the genetic material. It is of two major types.
1) Point m
Human genome project:
The total cost of the project was 9 billion US dollars and this project was a 13-year project by the U.S. D
DNA Fingerprinting
Dr. Alec Jeffreys developed the technique of DNA fingerprintin
Maxwell’s distribution of molecular speeds/energies
Inter molecular forces →
There are the forces of attraction between molecules of same or different substances. There are of following types &r
Physical properties of alkanes
(a) State:
(i) All are colourless & possess no characteristic odour.
(ii)
Coming Soon...