CSIR JRF NET Life Sciences Model Question Paper for June 2017 Exam (Set 1/4)
(1). Action of topoisomerase leads to changes in a. Linking number of single-stranded linear DNA b. Lining number of double stranded linear DNA c. Linking […]
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Similarities and Difference between RNA and DNA- A Comparison Table
We wish to suggest a structure for the salt of deoxyribose nucleic acid (DNA). This structure has novel features which are of considerable biological interest. […]
Difference between Necrosis and Apoptosis: A Comparison Table
Apoptosis vs Necrosis Apoptosis and Necrosis Apoptosis and Necrosis are two types of cell death occur in organisms. The cells undergo death when the cell […]
Nucleosome Model of Chromosomes in Eukaryotes (Short Notes)
Does the DNA really need to FOLD inside the nucleus? A diploid human cell contains approximately 6.4 billion base pairs. These 6.4 billion base pairs are […]
Classification of Chromosomes based on Position of Centromere and Length of Chromosomal Arms
The size and shape of the chromosomes are variable in the different phases of cell cycle. Chromosomes in the interphase of cell appear as thin, […]
Chemical Bonds Involved in Protein Structure and Conformation
Bonds involved in Protein Structure Proteins are the polymers of amino acids. Amino acids are joined together by a special type of covalent bond (peptide […]
Classification of Proteins Based on Structure and Function
Classification of proteins: Proteins are important macromolecules of the cells, formed by the polymerization of amino acids according to the sequence of genetic code in […]
Ecological Adaptations of Xerophytes (with PPT)
What are xerophytes? Ø Xerophytes (xerophytic plants) are plants growing in dry habitats (xeric conditions) where the availability of water is very less. Xeric habitat […]
Biological Importance of Water
Biological Importance of Water Biological importance of water: Water is the mother liquid of all forms of life. The essentiality of water for living systems […]