Botany Genetics Mendelian Inheritance

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References 1. Elrod S., Stansfield W., 2002, Genetics, 4th Edition, Tata McGraw-Hill 2. Strickberger M. W., 1985, Genetics, 3rd Edition, Macmillan Publishing Company 3. Griffiths A. J., Wessler S.R., Lewontin R.C., Carrol S. B., 2008, Introduction to Genetic Analysis, 9th Edition, W. H. Freeman and Company 4. Klug W.S., Cumming M.R., Spencer C. A., Palladino M. A., 2009, Concepts of Genetics, 9th Edition, Benjamin Cummings Publication 5. Tamarin R. H., 2002, Principles of Genetics, 7th Edition, Tata McGraw-Hill 6. Hartwell L.H., Hood L., Goldberg M.L., Reynolds A.E., Silver L. M., Veres R. C., 2004, Genetics, 2nd Edition, McGraw-Hill 7. Pierce B.A., Genetics: A Conceptual Approach, 4th edition, W.H. Freeman 8. T.H. Noel Ellis, Julie M.I. Hofer, Gail M. Timmerman-Vaughan, Clarice J. Coyne and Roger P. Hellens, 2011, Mendel, 150 years on, Trends in Plant Science, Vol. 16, 590-596 Genetics Botany Mendelian Inheritance Learn More / Supporting Materials / Source of Further Reading 2.1 Glossary Starting Term Defination Related Term Character <Character> < Genotype > < Genotype of an organism is the gene combination it possesses. Genotype of phenotypically yellow seeded F1 may be YY or Yy.> <Character> < Phenotype > < Phenotype refers to the observable attributes of an organism. Plants with either of the two genotypes Yy or Yy are phenotypically yellow seeded.> <Character> < Homozygote > < A plant with a pair of identical alleles is called as Homozygote (Y/Y or y/y).> <Character> < Heterozygote > < a plant in which the <term2> allele of the pair differ is called as heterozygote (Y/y).> <Character> < locus > < A locus (plural: loci) is the location of a gene on a chromosome. The gene for red flowers and the gene for white flowers are two different alleles at the same locus.> Genetics Botany Mendelian Inheritance 2.2 Time-Line Timelines Image Description < 1900 > < Image1> <Mendel’s work published in 1866 remained unnoticed until 1900 when three botanists Hugo De Vries, karl Correns and Erich von Tschermak redicovered his work> < 1902 > < Image2> <Two cytologist Walter Sutton and Theodor Boveri independently published paper demonstrating the chromosomal basis of Mendel’s principles of segregation and independent assortment> < date3 > < Image3> <Description3> < date4 > < Image4> <Description4> < date5 > < Image5> <Description5> 2.3 Did you know? Description Image Source < Mendel never < Image> <Source> noticed deviation from 3:1 monohybrid ration and 9:3:3:1 dihybrid ratio because i) genes studied by Mendel were located on different chromosomes ii) the contrasting Genetics Botany Mendelian Inheritance form of each of the seven characters were governed by a single gene> < Mendel < Image> <Source> identified segregation as a hypothetical process, without any molecular evidence and without knowing how it works. However now we understand that the nuclear spindle is the molecular machine that provide the motive force that pulls apart the chromosomes or chromatids at meiosis or mitosis> < The < Image> < Wrinkled Peas & White-Eyed Fruit Flies: The phenotypic Molecular Basis of Two Classical Genetic Traits differences in Author(s): Patrick GuilfoileReviewed work(s):Source: round and The American Biology Teacher, Vol. 59, No. 2 (Feb., wrinkled pea 1997), pp. 92-95Published by: University of California seeds is because Press on behalf of the National Association of Biology of starch and TeachersStable URL: http://www.jstor.org/stable/4450256 sugar content. > The absence of a particular enzyme in wrinkled peas (now called starch- Genetics Botany Mendelian Inheritance branching enzyme 1, SBE1) t hat catalyzes the conversion of amylose to amylopectin leads to accumulation of amylase in wrinkled seeds. > < Description> < Image> <Source> Genetics Botany Mendelian Inheritance .

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