When scientists discovered that the ovum was bigger than the sperm, it was thought by De Graf and others that the foetus existed in a miniature form in the ovum. Later, in the 18th century Maupertuis propagated the theory of biparental inheritance. The alaqah is transformed into mudghah which means something that is chewed (having teeth marks) and also something that is tacky and small which can be put in the mouth like gum. Both these explanations are scientifically correct. Prof. Keith Moore took a piece of plaster seal and made it into the size and shape of the early stage of foetus and chewed it between the teeth to make it into a Mudgha. He compared this with the photographs of the early stage of foetus. The teeth marks resembled the somites which is the early formation of the spinal column.
This mudghah is transformed into bones (izm). The bones are clothed with intact flesh or muscles (lahm). Then Allah Almighty makes it into another creature. Prof. Marshall Johnson is one of the leading scientists in US, and is the head of the Department of Anatomy and Director of the Daniel Institute at the Thomas Jefferson University in Philadelphia in US. He was asked to comment on the verses of the Quraan dealing with embryology. He said that the verses of the Quraan describing the embryological stages cannot be a coincidence. He said it was probable that Muhammad (peace be upon him) had a powerful microscope. On being reminded that the Quraan was revealed 1400 years ago, and microscopes were invented centuries after the time of Prophet Muhammad (peace be upon him), Prof. Johnson laughed and admitted that the first microscope invented could not magnify more than 10 times and could not show a clear picture. Later he said: I see nothing here in conflict with the concept that Divine intervention was involved when Muhammad (peace be upon him) recited the Quraan.
According to Dr. Keith Moore, the modern classification of embryonic development stages which is adopted throughout the world, is not easily comprehensible, since it identifies stages on a numerical basis i.e. stage I, stage II, etc. The divisions revealed in the Quraan are based on distinct and easily identifiable forms or shapes, which the embryo passes through. These are based on different phases of prenatal development and provide elegant scientific descriptions that are comprehensible and practical. Similar embryological stages of human development have been described in the following verses:
Was he not a drop Of sperm emitted (In lowly form)? Then did he become a clinging clot; Then did (Allah Almighty) make and fashion (him) In due proportion. And of him He made Two sexes, male and female. [Al-Quraan 75:37-39]
Him Who created thee, fashioned thee in due proportion, And gave thee a just bias; In whatever Form He wills, Does He put thee together. [Al-Quraan 82:7-8]
EMBRYO PARTLY FORMED AND PARTLY UNFORMED
At the mugdhah stage, if an incision is made in the embryo and the internal organ is dissected, it will be seen that most of them are formed while the others are not yet completely formed.
According to Prof. Johnson, if we describe the embryo as a complete creation, then we are only describing that part which is already created. If we describe it as an incomplete creation, then we are only describing that part which is not yet created. So, is it a complete creation or an incomplete creation? There is no better description of this stage of embryo genesis than the Quraanic description, partly formed and partly unformed, as in the following verse:
We created you Out of dust, then out of Sperm, then out of a leech-like Clot, then out of a morsel Of flesh, partly formed And partly unformed. [Al-Quraan 22:5]
Scientifically we know that at this early stage of development there are some cells which are differentiated and there are some cells that are undifferentiated some organs are formed and yet others unformed.
SENSE OF HEARING AND SIGHT
The first sense to develop in a developing human embryo is hearing. The foetus can hear sounds after the 24th week. Subsequently, the sense of sight is developed and by the 28th week, the retina becomes sensitive to light. Consider the following Quraanic verses related to the development of the senses in the embryo:
And He gave You (the faculties of) hearing and sight and feeling (And understanding). [Al-Quraan 32:9]
Verily We created Man from a drop Of mingled sperm, In order to try him: So We gave him (the gifts), Of Hearing and Sight. [Al-Quraan 76:2]
It is He Who has created For you (the faculties of) Hearing, sight, feeling And understanding: little thanks It is ye give! [Al-Quraan 23:78]
In all these verses the sense of hearing is mentioned before that of sight. Thus the Quraanic description matches with the discoveries in modern embryology.