Recombinant DNA has opened new avenues for the study of gene function. The function of a cloned gene can be investigated by introducing the cloned DNA into eukaryotic cells. In simple eukaryotes such as yeasts Saccharomyces cerevisiae, molecular clones of various mutants have been prepared for genetic analysis. Like bacteria, yeasts offer advantages in having […]
Study of Gene Function | Genetics
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DNA Polymorphisms: Meaning and Classes | Genetics
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In this article we will discuss about the meaning an classes of DNA polymorphisms. Meaning of DNA Polymorphisms: Different alleles of a gene produce different phenotypes which can be detected by making crosses between parents with different alleles of two or more genes. Then by determining recombinants in the progeny, a genetic map can be […]
Measuring of Genotype Frequencies | Genetics
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One way of measuring genotype frequency is from phenotype frequency. Consider the case of 3 blood groups A, AB and B determined by two alleles IA and IB at a single locus. In a random sample of 1000 humans, the A group occurred in 210, AB in 450 and B in 340 individuals. The frequencies […]
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