Living Cell

The cell is the basic structural and functional unit in all living organisms. Living forms vary in size but they are all made up of cells. In unicellular organisms, the cell is the organ. As an organism grow in complexity, the cells increase in number and similar cells aggregate into tissues and organs with specialized … Read more Living Cell

Modified dihybrid ratios with codominant and lethal alleles

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 recessive relationships. The classical dihybrid ratio may be modified if one or both loci have co-dominant alleles or lethal alleles. A summary of these modified phenotypic ratios in adult progeny … Read more Modified dihybrid ratios with codominant and lethal alleles

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