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A somatic cell that has just completed the S-phase of its cell cycle, as compared to gamete of the same species has
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twice the number of chromosomes and four times the amount of DNA
The S phase is interphase where synthesis or replication of DNA takes place. During this phase, the chromosome number remains unchanged while the DNA in each cell doubles. Diploid somatic cells will therefore have twice the number of chromosomes and four times the number of DNA (2n) after the S phase as compared to the gametes which are haploid in number (n).
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