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Monday, May 27, 2019

Biology Principles of inheritance and variation class 12

Biology Principles of inheritance and variation class 12


Description
In this course we will learn about Brief concept of inheritance and variation Genetics • Organisms reproduce- formation of offspring of the same kind. • The resulting offspring most often do not totally resemble the parent. • Branch of biology that deals with the inheritance and variation- Genetics. • Inheritance- the process by which characters are passed on from parent to progeny. • Variation-it is the degree by which progeny differ from their parents.
  •   history • Human knew before 8000- 1000 B. C variation is due to sexual reproduction • Exploited variations present in wild         plants & animals to selectively breed & select organism with desirable characters • Artificial selection & domestication of   wild cow- Sahiwal cows in Punjab
  1. Genetics is the branch of life science that deals with the study of heredity and variation. • Heredity is the transmission of characters from parents to their offsprings. • Variation is the difference among the offsprings and with their parents. • Hereditary variations: These are genetical and inheritable. • Environmental variation: These are acquired and non inheritable. Terminology
  2. Gregor Johann Mendel: Father of Genetics • Known as the father of modern genetics • Gregor Mendel developed the principles of heredity while studying seven pairs of inherited characteristics in pea plants. • Although the significance of his work was not recognized during his lifetime, it has become the basis for the present-day field of genetics. and much more concepts.
Who this course is for:
  • Freshmen/college students in a General Biology course Can be enrolled
  • Those student who are appearing For CBSE (Biology ) of class 12
  • Those Student which are preparing For NEET EXAM also Enrolled this Video
  • High School and Home-schooled students Can Enrolled This course
  • Those Student Who are Interested In Genetics They Can Get The Basic Idea From There



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