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Transmission Genetics


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Transmission Genetics

  1. 1. TRANSMISSION GENETICS •Jo Hannah Dadivas •Abigail Vergara
  2. 2. GENETIC TRANSMISSION is the transfer of genetic information from genes to another generation (from parent to offspring), almost synonymous with heredity, or from one location in a cell to another.
  3. 3. Gregor Mendel
  4. 4. GREGOR JOHANN MENDEL (JULY 20, 1822 – JANUARY 6, 1884) Was an Austrian scientist and Augustinian friar who gained posthumous fame 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. Although the significance of Mendels work was not recognized until the turn of the 20th century, the independent rediscovery of these laws formed the foundation of the modern science of genetics.
  5. 5. •Through the selective cross-breeding of commonpea plants (Pisum Sativum) over many generations, Mendel discovered that certain traits show up in offspring without any blending of parent characteristics.
  7. 7. 7 Characteristics of Pisum Sativum FlowerColor: Purple WhitePosition: Axil Terminal StemLength: Long Short SeedColor: Green YellowShape: Round Wrinkled PodColor: Green YellowShape: Inflated Constricted
  8. 8. AHYBRID is a combination oftwo (or more) breeds,whereas a PURE BREED (Pure-blood) is where both parents areof the same breed to produce anoffspring of the same breed.
  9. 9.  Dominant – A trait that shows up more often. Recessive – A trait that shows up less often. Homozygous – refers to having identical alleles for a single trait. Heterozygous - refers to having two different alleles for a single trait.
  10. 10. Law of Independent Assortment•Allele segregate/ separate independent to each other.
  11. 11. Law of Segregation“The gene pair segregate/ separate in the formation of a zygote”