Dr. Potu Narasimha Rao wikipedia
Answers
Dr. Potu Narasimha Rao, a famous scholar and an eminent cytologist belonged to a poor family in Muppala village of Guntur district of Andhra Pradesh. He completed his graduation in Agriculture and did his MS at IARI, New Delhi. In USA he did his research work on the cytogenetics of tobacco plant. During his research, a cell line called HELA, isolated from a human tumour was established in 1952. He worked on this cell line and received his PhD in 1963. He shifted his attention then from plant cytogenetic to the field of cancer cells in culture medium. He conducted research in cell kinematics and studied the “triggering factor” of cell division.
He found that human cells either normal or cancer cells in culture media usually divide every 20 to 24 hours. But actually normal mitosis is completed in 40 to 60 minutes. The period in between two cell divisions is called interphase. The interphase further consists of 3 phases G1, S and G2 phases.
To understand the functional relationship between these phases, Dr.Rao and his research associate Dr. Johnson did some elegant experiments on cell fusion technique. His researches revealed that the cell cycle is sequential Unidirectional and controlled by a series of chemical signals. His experiments are considered to be very valuable in the study of the cell cycle. This study has given new rays of hope to the budding scientists to carry out researches on cell division.
Their fate in becoming Prime Minister is behind the move. Rajiv Gandhi was killed May 29, 1991. The wave of sympathy certainly benefited the Congress. General elections were held in two phases in 1991. Election of the first phase and the second phase was the assassination of the former's election after his assassination. Compared to the first phase, the second phase of the Congress performed. The reason for this was the wave of sympathy from the assassination. The Congress received a clear majority but he emerged as the largest party. The Congress won 232 seats. Narasimha Rao of the Congress Parliamentary Party leadership was provided. So he staked claim to form the government. The government was in a minority, but the majority to prove worthy of the Congress MP and Congress to raise the government successfully completed his tenure of five years.