During fertilisation, the second meiotic division of the secondary oocyte produces:
AThe Graafian follicle
BTwo equal diploid daughter cells
CTwo secondary spermatocytes
DA haploid ovum (ootid) and a second polar body
Answer & Solution
Correct answer: D. A haploid ovum (ootid) and a second polar body
Sperm entry triggers completion of meiosis II of the secondary oocyte: an **unequal division** yielding a haploid **ovum (ootid)** plus a small **second polar body**. The sperm and ovum haploid nuclei then fuse to form the diploid zygote.
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