In this article we will discuss about:- 1. Meaning of Heredity 2. Mechanism of Heredity 3. Laws. Meaning of Heredity: The offspring's of any particulars species resembles its parents in a general way. The young of cats are always kittens and never puppies. With respect to details, however, there is a lot variation. No kittens are exactly alike. Some may [...]
The following points highlight the five important theories about heredity genetics. The theories are: 1. Preformation 2. Epigenesis 3. Acquired Characters 4. Pangenes 5. Germplasm. Heredity Genetic: Theory # 1. Preformation: This theory was proposed by two Dutch biologists, Swammerdam and Bonnet (1720-1793). This theory states that a miniature human called homunculus was already present in the egg and sperm. [...]
Let us make in-depth study of the pre-Mendelian and post-Mendelian Concepts of Heredity. Pre-Mendelian Concepts of Heredity: Various views were prevailing about the process of heredity before the rediscovery of Mendel's laws of inheritance in 1900. Some of these concepts are given below: 1. Preformation Theory: This theory was proposed by two Dutch biologists, Swammerdam and Bonnet (1720-1793). This theory [...]