Final Answer:
During meiosis I, diploid cells undergo division to produce haploid cells, each with half the original chromosome number.Thus option d is the corect option.
Step-by-step explanation:
At the end of meiosis I, cells are haploid, meaning they have half the number of chromosomes as the original diploid cell. Meiosis I involves the separation of homologous chromosomes, resulting in two haploid cells, each with a single set of chromosomes. The process starts with a diploid cell (2n), and after meiosis I, the cells are haploid (n). This reduction in chromosome number is crucial for sexual reproduction, ensuring that when gametes fuse during fertilization, the resulting zygote has the correct diploid chromosome number.
During meiosis I, homologous chromosomes separate, and each resulting cell receives only one member from each pair. This is why the chromosome number is halved during this stage. If the starting cell is diploid (2n), at the end of meiosis I, the cells are haploid (n). Therefore, option D, "Haploid n," correctly represents the genetic makeup at this stage.
In summary, meiosis I leads to haploid cells, each with a single set of chromosomes, and the correct representation of the genetic makeup at the end of meiosis I is haploid (n). This process is essential for the generation of genetically diverse gametes in sexual reproduction.
Therefore option d is the corect option.