Biology 1001A Lecture Notes - Lecture 5: Noncoding Dna, Genome Size, Somatic Cell
19 Nov 2012
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Lecture 4 - is: meaning of c-value . 2. refers to the amount of dna contained in a haploid nucleus (a gamete) or half of the amount in a diploid somatic cell of a eukaryotic organism ex- pressed in pictograms. If you have 3 copies aka triploid, you have. 3c in polyploids the c-value may represent two or more genomes contained in the same nucleus. It was found that c-values vary greatly among species and it bares no rela- tionship to the presumed number of genes. At the center of the enigma is that observation that genome size does not correlate with organismal complexity - later discovered that it was because of the existance of non-coding dna. The enigma relates to the issue of variation in the amount of non-coding. Dna found in the genomes of different eukaryotes. It is defined by a series of independent questions. What types of non-coding dna are found in eukaryotic genomes.
