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Showing posts from August, 2023

Scientists and their work related to Genetics

Avery, Macleod and Mc Carty (1944) - proved that DNA is genetic material and gave Biochemical nature of gene (DNA). Arber, Smith and Nathani- Discovered restriction endonucleases in bacteria which are widely used in genetic engineering. Altmann - introduced the term "Nucleic acid" in 1989. A. Folling  the Norwegian physician, discovered phenylketonuria in 1934. Alfred D. Hershey and Martha Chase - proved DNA as genetic material in 1952. Benzer - Fine structure of gene (cistron, recon and muton) Briggs and King - Performed transplantation experiments of frog and toad eggs and proved that developmental changes are determined by molecular changes in the nucleus. When the nucleus from young embryonic cell is transplanted into non nucleated egg the tadpole develops. Bateson - Father of animal genetics, gave the terms allele, F1, F2, homozygous, heterozygous and genetics; applied Mendel's law on animals. Alongwith Punnett, he gave coupling and repulsion theory for genes. Br