Upload NowThe word ‘chromosome’ was coined by Waldeyer and means coloured body. Chromosomes are found in viruses, prokaryotes and eukaryotes. 1. Prokaryotic Chromosome: Prokaryotic cells do not possess nuclear membrane and the genetic material is found in a compact structure called nucleoid. A prokaryotic cell possesses a single chromosome which is irregularly folded into a compact […]
Structure of Chromosomes: Prokaryotic & Eukaryotic | Genetics | Biotechnology
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Chromosome Theory of Sex Determination | Genetics | Biotechnology
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According to the chromosome theory of sex determination proposed by McClung, chromosomes play a major role in determination of sex in most of the dioeciously organisms. In diploid organisms, a pair of chromosomes determines the sex of individual. They are called the sex chromosomes or allosomes or heterosomes. Sex determination is the process by which […]
Chromosome Theory of Linkage | Inheritance | Genetics | Biotechnology
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Morgan formulated the chromosome theory of linkage according to which: a. Genes lie in a linear order in the chromosomes. b. The genes that are linked, stay on the same chromosome. c. The distance between the linked genes in the chromosome determines the strength of linkage. The closer the genes are located, stronger is the […]