शिशु जन्म के बाद पहले दो या तीन दिनों के दौरान स्तन ग्रंथियों से निकलने वाला जलीय और पीला तरल पदार्थ सामान्य दूध से भिन्न होता है, उसे क्या कहा जाता है?

Arrange the following cell layers/structures around the female gamete, from outer to inner side: A. Zona pellucida B. Perivitelline space C. Corona radiata D. Plasma membrane of ovum Choose the correct answer from the options given below:

Spermatogonia undergo a series of cell divisions to produce sperms. Consider the following statements: A. Spermatogonia always undergo meiotic cell division. B. Primary spermatocytes divide mitotically to produce secondary spermatocytes. C. Secondary spermatocytes, through their second meiotic division, produce haploid spermatids. D. Spermatids produce spermatozoa through mitosis. E. Spermatids transform into spermatozoa by spermiogenesis. Choose the correct answer from the options given below: