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In his book, entitled The Qur'an & Modern Science Compatible or Incompatible, Naik represented samples of modern scientific achievements as well as referring to the related verse (s) in the Qur'an, i.e. the verses to which the scientific points are mentioned. The present paper is to review \"embryology\" in his book. In order to attain the implication of the verses of the Qur'an upon the scientific points, different viewpoints like exegetical, tradition, lexical and syntactic are used and scientific viewpoints are mentioned to attain the conclusiveness of the scientific points to which Naik considered. The result shows that his performance was correct in some cases.

Background : To current knowledge, different oocyte's recovery method and various seasons have profound impact on in vitro embryo production (IVEP). Objectives : The aim of this study was to define an efficient recovery method for oocytes harvesting from slaughterhouse material in different seasons, and their effects on IVEP yield. Materials and Methods : Ovaries from slaughtered ewes in breeding season (BS) and non-breeding season (NBS) were collected from a local abattoir. The oocytes were recovered through aspiration, centrifugation (ORC), puncture and slicing, and categorized into three classes (I, oocytes with more than three layers of cumulus cells ; II, less than three layers with damaged cumulus cells; III, denuded oocytes). After cultivation in TCM 199 for 24 hours, matured oocytes were subjected to in vitro fertilization (IVF) and in vitro culture (IVC). The oocyte recovery using ORC in BS and NBS was significantly higher (P < 0.05) compared with other recovery methods. Results : No significant dissimilarities in the proportion of oocytes reaching M-II stage were recorded when using different oocyte recovery methods in different seasons. Aspiration resulted in lower (P < 0.05) proportion of class I (BS, 60.0 ± 2.1; NBS, 51.1 ± 2.1) compared to ORC (BS, 82.0 ± 1.2 ; NBS, 70.0 ± 1.2), slicing (BS, 80.0 ± 2.1; NBS, 71.0 ± 1.4) and puncture (BS, 80.0 ± 1.5; NBS, 72.0 ± 2.0). Monospermy and blastocyst development rates were significantly higher using ORC than other recovery techniques in both BS and NBS. More oocytes with high quality, greater blastocyst development and oocyte recovery rates were achieved in BS. Conclusions : The results revealed that oocytes harvesting technique and season are effective in the rate of cleavage and blastocysts’ development, and suggest that despite same meiotic resumption rate in all treatments, it would be better to use ORC.

Pathogenetics refers to studying the different aspects of initiation/development/progression and pathogenesis of genetic defects. It comprises the study of mutagens or factors capable of affecting the structural integrity of the genetic material leading to mutational changes that, in the majority of cases, result in harmful effects due to the resulting disturbances of functions of mutated components of the genome. The study of mutagens depicts different types of mutagenic factors, their nature, their classification according to their effects on the genetic material and their different modes of action. The study of mutation involves different types of mutations classified according to various parameters, e.g. magnitude, severity, target of mutational event as well as its nature, which can be classified, in turn, according to whether it is spontaneous or induced, static or dynamic, somatic or germinal mutation etc. Finally, pathogenetics comprises studying and delineating the different and innumerable pathophysiological alterations and pathogenetic mechanisms that are directly and indirectly involved in, and leading to, the development of genetic disorders, coupled with a parallel study of various anti-mutation mechanisms that play critical roles in minimizing the drastic effects of mutational events on the genetic material and in effective protection against the development of these diseases.

تظهر أهمية هذا البحث في أنه بين حكم الشرع أمام الجدل الواسع الذي أثير حول مسألة تحديد جنس الجنين، وذلك من خلال عرض الكيفية الحقيقية لهذه العملية مع ذكر ضوابطها وموقف العلماء منها. ويهدف البحث للتعريف بعملية تحديد جنس الجنين وشرح صورها وعرض آراء العلماء فيها. ولقد اتبع البحث المنهج الاستقرائي التحليلي، حيث تم عرض أراء الفقهاء وأدلتهم، ومناقشتها، بموضوعية وحياد، وقد استعرضت الآيات والأحاديث وغيرها من مصادر التشريع التي احتجتها في البحث وقمت بتوثيق ما استشهدت به في الهامش. ويمكن تلخيص الضوابط المقترحة في أن تحديد جنس الجنين ليس سياسة عامة بحيث لا يؤدي إلى خلل في التوازن الطبيعي بنسب الجنسين، وأن يقتصر استخدامه على الحاجة والتأكد من خلط الماء الذي يؤدي إلى اختلاط الأنساب، ويجب العمل على الحفاظ على العورات، وذلك بقصر الفحص على مكان الحاجة في قدر وزمن معين، ومن المقابل في الجنس، وينبغي ألا ننسى أن هذه الوسائل ما هي إلا أسباب لإدراك المطلوب، وأن هذا الدعاء مؤكد وله أكبر الأثر.