Know in one minute about prokaryotic DNA The prokaryotic DNA found in the cytoplasm is usually circular and present in fewer amounts. It is naked without histone protein. It exists as single chromosome Apart from that additional plasmid DNA is also present. The compact mass of DNA is called the nucleoid. Non-coding introns absent with […]
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Introduction cDNA is called complementary DNA. The cDNA synthesis takes place from a mRNA (messenger RNA) or miRNA (micro RNA). This transcription process (Synthesis) takes place with the help of the enzyme reverse transcriptase. The basic difference between cDNA and genomic DNA is that they lack introns or non-coding sequences. Genomic DNA is composed of
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Know in one minute about histone Histones are positively charged basic proteins. They are found in the nuclei of eukaryotic cells responsible for DNA folding and chromatin formation. Hence, they are important for the formation of nucleosomes. The core particle is octamer. These proteins are rich in positively charged amino acids such as lysine and
Know in one minute about tissue culture plants Tissue culture plants are obtained by in vitro aseptic culture of cells, tissues, organs, or whole plants under controlled conditions. These conditions comprise of appropriate supply of nutrients, pH medium, and adequate temperature. These plants are more efficient and more improved thus producing good results in terms
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Know in one minute about glycosidic bond A Glycosidic bond is a bond that joins one carbohydrate (sugar) molecule to another, which may or may not be a carbohydrate molecule It is a type of covalent bond. Formed between anomeric carbon and alkoxy oxygen of sugar molecules. When two or more sugar molecules (monosaccharides) are
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Histone acetylation: Know in one minute Histone acetylation is the introduction of an acetyl group to the amino acid lysine which is present in the histone tail. Whereas histone deacetylation is the removal of the acetyl group. This process is done by two main enzymes a.
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Introduction The Carboxyl group (-COOH) of one amino acid is attached to the amino group of another amino acid by a covalent bond called a peptide bond. When a peptide bond forms a water molecule is eliminated. Each amino acid unit in the peptide is known as the residue. All peptides have two ends, amino-terminal
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Introduction Anion exchange vs cation exchange is the two forms of ion-exchange chromatography. These are the two chemical methods used to separate molecules according to their net surface charge. There are some differences between these two chemical methods. An ion is an atom or molecule. When an atom is charged positively or negatively by accepting
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Introduction Synthetic seed and in vitro propagation are the need of the hour. Mainly for the conservation of those plants that are under threat of extinction. Synthetic seed is a generic term for a somatic embryo delivery system used as a means of clonal propagation. Artificial seeds or synthetic seeds have great potential for large-scale
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Introduction Purine and pyrimidine are the two nitrogenous bases known as the building blocks of nucleic acids in both DNA and RNA. Besides being nitrogenous bases there are some differences between them so we will discuss purines vs pyrimidines. Nucleic acid is basically a polymer of countless nucleotides. Nucleotides consist of three subunit molecules, such
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