The study of heredity and the variation of inherited characteristics and the genetic properties or features of an organism and their characteristics.
Linkage group • A linkage group is a linearly arranged group of linked genes which are normally inherited together except for crossing over during cell […]
• Linkage has been found to be complete or incomplete depending upon the absence or presence of nonparental or new combinations of linked genes. Complete […]
• Although Gregor Mendel developed his ground : breaking principles of inheritance in the mid-1800s, the importance of his work went largely unnoticed by the […]
Principles or laws of Inheritance (I) Law of Dominance When two homozygous individuals with a contrasting characters are crossed the character that appear in the […]
Mendel’s Experiment – Monohybrid Cross Monohybrid cross is a cross made to study simultaneous inheritance of a single pair of Mendelian factors. In other words, […]
• Character is a well defined morphological or physiological feature of an organism. • Trait is the distinguishing feature of a character. • Gene is […]
Gregor Mendel Biography Gregor Johann Mendel (1822-84) was born to a peasant family in the Central European village of Heinzendorf. The poverty his family experienced […]
In general, one gene affects a single character. But many genes are known to affect more than one character. Such genes are called pleiotropic genes […]
The classical phenotypic ratio resulting from the mating of dihybrid genotypes is 9:3:3:1. This ratio appears whenever the alleles at both loci display dominant and […]
Mendel studied the pattern of inheritance using several true-breeding varieties of garden peas. He concentrated on transmission of seven easily identified traits, and crossed plants […]
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