{"id":35131,"date":"2022-11-22T11:37:22","date_gmt":"2022-11-22T06:07:22","guid":{"rendered":"https:\/\/tsboardsolutions.com\/?p=35131"},"modified":"2022-11-23T16:09:55","modified_gmt":"2022-11-23T10:39:55","slug":"ts-inter-2nd-year-zoology-notes-chapter-6","status":"publish","type":"post","link":"https:\/\/tsboardsolutions.com\/ts-inter-2nd-year-zoology-notes-chapter-6\/","title":{"rendered":"TS Inter 2nd Year Zoology Notes Chapter 6 Genetics"},"content":{"rendered":"

Here students can locate TS Inter 2nd Year Zoology Notes<\/a> 6th Lesson Genetics to prepare for their exam.<\/p>\n

TS Inter 2nd Year Zoology Notes 6th Lesson Genetics<\/h2>\n

\u2192 Genetics, a discipline of biology, is the science of heredity and hereditary variations in living organisms.<\/p>\n

\u2192 The word ‘Genetics’ is derived from the Greek word genesis which means origin of anything or a beginning.<\/p>\n

\u2192 The term Genetics was coined by W. Bateson.<\/p>\n

\u2192 T.H. Morgan, contributed to the glory of the science of ‘Genetics’ with his experiments on Drosophila melanogaster the fruit fly.<\/p>\n

\u2192 Heredity is the study of transmission of characters from one generation to the next.<\/p>\n

\u2192 Variations are defined as the difference in characteristics shown by the individuals of a species and also by the progeny of the same parents.<\/p>\n

\u2192 Modern science of genetics only began with the work of Gregor Mendel in the Mid 19th Century.<\/p>\n

\u2192 After the rediscovery of Mendel’s work by de Vries, Correns and Tschermak, scientists tried to determine which molecules in the cell were responsible for inheritance.<\/p>\n

\u2192 Theory of inheritance or Sutton – Boveri Theory is a fundamental unifying theory of genetics.<\/p>\n

\u2192 Experimental verification of the ‘Chromosomal theory of inheritance’ by T.H. Morgan and his colleagues, led to discovering the basis for the variation that sexual reproduction produced.<\/p>\n

\u2192 The phenomenon of multiple effects of a single gene is called Pleiotropy.<\/p>\n

\"TS<\/p>\n

\u2192 When more than two alleles exist in a population of specific organism, the phenomenon is called multiple allelism.<\/p>\n

\u2192 Gregor Mendel
\nGregor Johann Mendel (1822 – 1884) was a German – speaking It Silesian scientist and Augustinian friar who gained posthumous fame I as the founder of the new science of genetics. Mendel demonstrated | that the inheritance of certain traits in pea plants follows particular patterns, now referred to as the laws of Mendelian ^inheritance. The profound significance of Mendel’s work was not recognized until the turn of the 20th century, when the independent rediscovery of these laws initiated the modern science of genetics.<\/p>\n

\u2192 Francis Galton
\nSir Francis Galton, (1822 -1911), cousin of Douglas Strutt Galton, cousin of Charles Darwin, was an Hnglish Victorian polymath: anthropologist, eugenicist, tropical explorer, geographer, inventor, meteorologist, proto – geneticist,psychometrician, and statistician. He was knighted in 1909. Galton produced over 340 papers and books. He also created the statistical concept of correlation and widely promoted regression toward the mean. He was the first to apply statistical methods to the study of human differences and inheritance of intelligence, and introduced the use of questionnaires and surveys for collecting data on human communities, which he needed for genealogical and biographical works and for his anthropometric studies. He was a pioneer in eugenics, coining the term itself and the phrase “nature versus nurture”. His book Hereditary Genius (1869) was the first social scientific attempt to study genius and greatness.<\/p>\n","protected":false},"excerpt":{"rendered":"

Here students can locate TS Inter 2nd Year Zoology Notes 6th Lesson Genetics to prepare for their exam. TS Inter 2nd Year Zoology Notes 6th Lesson Genetics \u2192 Genetics, a discipline of biology, is the science of heredity and hereditary variations in living organisms. \u2192 The word ‘Genetics’ is derived from the Greek word genesis … Read more<\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[26],"tags":[],"yoast_head":"\nTS Inter 2nd Year Zoology Notes Chapter 6 Genetics - TS Board Solutions<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tsboardsolutions.com\/ts-inter-2nd-year-zoology-notes-chapter-6\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"TS Inter 2nd Year Zoology Notes Chapter 6 Genetics - TS Board Solutions\" \/>\n<meta property=\"og:description\" content=\"Here students can locate TS Inter 2nd Year Zoology Notes 6th Lesson Genetics to prepare for their exam. 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