Aബീജസങ്കലനം
Bസൈഗോട്ട്
Cദ്വിതീയ അണ്ഡകോശം
Dഊഗോണിയ
Answer:
C. ദ്വിതീയ അണ്ഡകോശം
Read Explanation:
During oogenesis (the process of egg formation), a primary oocyte undergoes Meiosis I to produce a secondary oocyte and a polar body. This division is reductional, meaning the chromosome number is halved. Therefore, the secondary oocyte receives 23 chromosomes (each still consisting of two sister chromatids).
This secondary oocyte then proceeds to Meiosis II, but it arrests at metaphase II. It's only after fertilization by a sperm (which also has 23 chromosomes) that Meiosis II is completed, leading to the formation of a mature ovum (egg) and another polar body. The fusion of the 23 chromosomes from the sperm and 23 from the mature ovum then restores the full complement of 46 chromosomes in the zygote.