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Ebright has stated that the genome and properties of SARS-CoV-2 provide no basis to conclude the virus was engineered as a bioweapon, [28] [29] but he also has stated that the possibility that the virus entered humans through a laboratory accident cannot be dismissed and has called for a thorough investigation of the origin of the pandemic and for measures to reduce the risk of future pandemics.
He encouraged general education and made a significant contribution to school education by his leadership in bringing out the very first textbooks of Biology for Higher Secondary Schools published by NCERT in 1964. He is also known as father of Indian plant embryology also wrote a book- an introduction to embryology of Angiosperms.
The theory of recapitulation, also called the biogenetic law or embryological parallelism—often expressed using Ernst Haeckel's phrase "ontogeny recapitulates phylogeny"—is a historical hypothesis that the development of the embryo of an animal, from fertilization to gestation or hatching (), goes through stages resembling or representing successive adult stages in the evolution of the ...
Radio broadcasting was initiated in 1927 but became state responsibility only in 1930. [12] In 1947 it was given the name All India Radio and since 1957 it has been called Akashvani. [12] Limited duration of television programming began in 1959, and complete broadcasting followed in 1965. [12]
The term "technological evolution" captures explanations of technological change that draw on mechanisms from evolutionary biology. Evolutionary biology was originally described in On the Origin of Species by Charles Darwin. In the style of this catchphrase, technological evolution can be used to describe the origin of new technologies.
In biology, evolution is any change across successive generations in the heritable characteristics of biological populations. Evolutionary processes give rise to diversity at every level of biological organization , from kingdoms to species , and individual organisms and molecules , such as DNA and proteins .
The historical application of biotechnology throughout time is provided below in chronological order.. These discoveries, inventions and modifications are evidence of the application of biotechnology since before the common era and describe notable events in the research, development and regulation of biotechnology.
In biology, phylogenetics (/ ˌ f aɪ l oʊ dʒ ə ˈ n ɛ t ɪ k s,-l ə-/) [1] [2] [3] is the study of the evolutionary history of life using genetics, which is known as phylogenetic inference. It establishes the relationship between organisms with the empirical data and observed heritable traits of DNA sequences, protein amino acid sequences ...