NATS 1560 Lecture Notes - Lecture 10: Marquis Wheat, Mendelian Inheritance, Plant Breeding
21 Mar 2017
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Document Summary
Species is a group of organisms that normally breed with one another. Different species of the same genus can sometimes mate. Breed is a group with common lineage within a species, especially one developed by artificial selection and maintained by controlled propagation. Pure breed is produced by the controlled of mating of an unmade breed over many generation. Crossbreed: produced by the mating of the two different breeds of the same species. Hybrid is of mixed origins, either crossbreed or produced by the mating of two different species of the same genus. Straight breeding: mating individuals of the same breed. Gene: unit of heredity i. e. factor carrying from parent to offspring. Chromosomes: microscopic stteuctures appearing in the cell nucleus during cell division. 1970s genetic engineering: direct manipulation of dna to transplant genetic material form organism to another. Cloning: transfer of the entire nuclear dna of a donor organism into a emptied out egg cell of the same species.
