Genetics , Biology

Genetics

Genetics is the study of heredity. It is an ancient discipline. At least 4000 years ago, in Sumeria, Egypt and other parts of the world, farmers recognized that they could improve their crops and their animals by selective breeding. Their knowledge was based on experience and they recognized that many features of plants and animals were passed on from generation to generation. Furthermore, they were aware that desirable traits - such as size, speed and weight of animals could sometimes be combined by controlling mating, and that in plants, crop yield and resistance to arid conditions could be combined by cross pollination, The ancient breeding programs were not based on experimental studies because nothing was known of genes or any of the principles of heredity.

Posted Date: 12/11/2012 2:55:21 AM | Location : United States







Related Discussions:- Genetics , Assignment Help, Ask Question on Genetics , Get Answer, Expert's Help, Genetics Discussions

Write discussion on Genetics
Your posts are moderated
Related Questions
The important functional characteristics of soy protein The most important functional characteristics of soy protein concentrates are water-binding (water adsorption) capacity,

Q. What are the three major signs of diabetes? The three major signs of diabetes mellitus are known as the diabetic triad- polydipsia, polyuria and polyphagia. Polyuria is t

Q. What is the difference between cellular specific immune response and humoral specific immune response? Humoral specific immune response is the defense system by means of, an

What is Class Reptilia ? Class Reptilia include the vertebrates that have successfully transitioned to a terrestrial lifestyle by evolving protective scales and a "land egg."

How many ATP molecules are made after glycolysis? Glycolysis is a process same to glucose degradation in fermentation. It forms (final balance) two molecules of ATP for each br

Which of the following serves as a sensor, or as part of a sensor, that functions in a negative feedback system? A. CaSRs (Calcium-Sensing Receptors) located in the plasma memb

What are DNA ligases? How do these enzymes participate in the recombinant DNA technology? The DNA ligases are enzymes specialized in tying the complementary DNA chains that for

amphibia class characteristics

Histogenesis and Organogenesis After the octant stage numerous cell divisions occur in various planes. The proembryo become globular or bulb-shaped. As a general rule, some ta

How do placental mammals reproduce? Placental mammals reproduce sexually, they have internal fecundation and they are viviparous, i.e., their embryo creates within the mother's