Book Title: Jain Biology
Author(s): Jethalal S Zaveri, Mahendramuni
Publisher: Jain Vishva Bharati

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Page 108
________________ sineham samciņamti' refers to the entry of the sperm into the mature ovum by penetrating the surrounding barrier and fusing of the pronuclei of both gametes as described above. It is only then that the integrated cell is ready to receive the animating conscious principle, the soul. If there is no entry of an animating soul upto a short specific period, the cell would decompose and would be excreted. 3. PRENATAL DEVELOPMENT Now the single cell with a full set of 46 chromosomes, (23 from the mother and 23 from the father) divides into two duplicates of itself. This is the first in the series of many divisions and the cells divide again and again in a long process of development in which many changes occur in a precise sequence. Using the instructions spelled out in the DNA blueprints contained in the nucleus of the fertilized and animated cell, the embryo produces all the different organs in a precise sequence following a harmoniously regulated time-schedule. The growing embryo is attached, first by a stalk and then by a rope like umbilical cord to the placenta.' It receives nourishment from the mother's humers through the placenta via its umbilical life-line. The passage, “te jīvā māuoyam piusukkam tadubhaya-samsuttham kalusam kibhisam tappadhamayāe āhāramāhāremti. tuo pacchā jam se māyā nānāvihāo rusavalo āhārumāhāremti, tao egadesenam oyamāhāremti. uņupuvvenam vuddhā palipāgumaņupavannā, tuo kāyāo ubhiņivattumānā itthiņ vegayā janayamti, purisum veguyā janayamti, napuinsugam vegayā junayumti. te jīvā dahurā sumāņā māukkhīram suppim ūhāremti, āņupuvveņum vuddhā oyanam kummāsam tasathāvare yapfbe-te jīvā āhāremti pudhavisarīram äusurīram teusurīram vāusarīram vanassuisarīruin tasapānasurīram. ņāņāvihānam tusathāvarāņam pānāņam surīram ucittam kuvvamti. parividdhartham tum sarīrum puvvāhāriyam tayālāriyam vipurinayam sūruuvikudam samtam (suvvuppanattāe āhāremti?).” 1. Placenta-organ formed in uterus of placental mammals by close union of tissues of mother and embryo. It serves to nourish embryo. JAIN BIOLOGY - 93: Jain Education International For Personal & Private Use Only www.jainelibrary.org

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