Genetics

The study of biological inheritance. There are two branches of genetics called the Mendelian and the biometrical. Mendelians study single-gene characters, which are either present or absent with no intermediates. Biometricians study many-gene (polygenic) characters, which are continuously variable between a minimum and a maximum. Some scientists recognise a third branch called population genetics, which studies the changing frequencies of Mendelian genes within a natural population. However, this term should not be confused with the very different population breeding. Obviously, a good geneticist studies all aspects of genetics equally. Plant and animal breeding are sometimes described as applied genetics. Gene-transfer breeding See: Pedigree breeding. Genome

The monoploid set of chromosomes which, in a homozygous plant, occurs in a gamete, and consists of all the genes. A term often used loosely to mean the complete set of genes in a plant.

Growing Soilless

Growing Soilless

This is an easy-to-follow, step-by-step guide to growing organic, healthy vegetable, herbs and house plants without soil. Clearly illustrated with black and white line drawings, the book covers every aspect of home hydroponic gardening.

Get My Free Ebook


Post a comment