Chromosomes (Structure, types, functions and disorders)
Chromosomes The nucleus of eukaryotic cells consists of a thin reticulate complex of DNA and proteins (histone), which are not distinctly visible in a non-dividing […]
Month: September 2017
Artificial vegetative propagation in plants
Vegetative propagation is a form of asexual reproduction occurring in plants in which a new plant grows from a fragment of the parent plant or grows from a specialized […]
The human heart (External and internal structure)
The human heart In all vertebrates including human beings, there is a single heart which acts as a pumping organ of blood vascular system. It […]
Blood cells (Types and functions)
Blood cells The blood cells constitute about 45% of the total blood volume. There are three major types of blood cells; Erythrocytes, Leukocytes and Thrombocytes. […]
Acids,Bases and Salts (Types and properties)
One hundred and fifteen different elements have been discovered so far, which combine to form a huge number of compounds. On the basis of their […]