The result is 39 chromosomes at the poles of the cell. The chromosome number is reduced from 2n (diploid) to n (haploid). Then the cell will undergo meiosis II, where the cell will divide, producing 4 haploid daughter cells with half the number of chromosomes of the parent cell.
After fertilization, the ploidy remains the same that is 78 chromosomes. So now if we can check other aspects.
The second thing to be considered is Meiosis and we know Meiosis is the cell division for the formation of gametes. In gametes the ploidy level becomes half, so the chromosome number should be half that is 39.
Let's move to the third aspect that is the G2 checkpoint, G2 checkpoint occurs after the S phase here the diploid level is the same but copies of Single chromosomes doubles as the formation of the chromatids. Two sister chromatids are a copy of each other from the same chromosome. These sister chromatids are attached through the centromere region of the chromosome which looks like an "X".
Here the chromosome number should be 78 but the chromatid number is 156 number.
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