The egg containing the transferred DNA is then induced to divide until it forms a hollow, fluid-filled cavity surrounded by a single layer of 30 to 150 cells. This 5-day-old embryo, known as a blastocyst, is a microscopic treasure chest. It holds the precursors of one of the most sought-after and controversial jewels in science -- embryonic stem cells
--DNA°¡ ġȯµÈ ³ÀÚ´Â 30°³³ª 150¼¿ÀÇ ´ÜÃþÀ¸·Î µÑ·Á½Î¿©Áö´Â ¼ÓÀ̺ó ¾×ü·Î ä¿öÁø °øµ¿À» Çü¼ºÇÒ¶§±îÁö ºÐ¿ÇÑ´Ù. 5ÀÏ°£ »ýÁ¸ÇÏ´Â embryo(¹è¾Æü, Áï blastocyst¶ó°íÇÔ)Àº ¹Ì½Ã¼¼°èÀÇ º¸¹° »óÀÚÀÌ´Ù. ±×°ÍÀº °úÇа迡¼ °¡Àå °¥±¸ÇÏ°í ³í¶õÀÌ µÇ¾ú´ø °¡Àå °ªÁø º¸¹°ÀÎ Ä¡·áÁ¦¸¦ °¡Áö°í ÀÖ´Ù. ±×°ÍÀÌ ¹Ù·Î ¹è¾Æ Áٱ⠼¼Æ÷ÀÌ´Ù.
--TRIBUNE-REVIEW
Tuesday, December 7, 2004
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