лѭ͹  

 

١ѭ͹öͧ ءѹ˭ǧ͹ҧ˹ѡ Ѻ ͺͧѭ͹ԭԺ ҧ͹ ͧ Ѻ֡Ѵ ͧ١ԭԴ ˵Сѹ ôäѴ ͧͧ Կҡôͧͧá Ҵ ͧѺ͹ʹ ѡʺͧͧͧ ͧҴ͡ਹͧҡغѵ˵ѡҺá äҹͧ ҵʹչԴͧ͹ͧ´ Դҧѹ

 

ѭ͹ͧҡäغѵ˵

ѭ͹ͧҡԴ ʵ֧˹ѡѴѧͧ ա§ȡѺ ѧäԿ ѧԭԴͧպѡ äѴѹҨԴä Ѳͧͧͧá ǹáҺѴѧ ͤҨͧҴ͡ਹ غѵ˵ͧͧҡá͹ҡͧҧ

 

ѭ͹ͧҡҴҵ

ҵʹչ ҵӤѭѲͧͧ ҵ ط ʹչ ʹչͧСͺͧ͡Թ (thyroxin) Եҡ´˹dz ͡Թ˹ӤѭǺѵ (metabolism) ͧҧǺԭѲͧҧѲͧͧ Ҵҧǹ ҧ˹ѧ Һ ԭԺ ѭ͹ ҡ ¡ շ (cretinism) ˭Ҵ ͡Թ ˹ ͹ç Դ ҡ¡ ԡ (myxed ema) ͡ҡҴҵʹչШ ä-͡ (simple goiter) ҡԡ ҡ

ͧѹ ١ѡ ط ʹչ ʹչ ʹչ Ѻ ͡á Ѻҵʹ´ ҡҧ

ѭѹ

ѭ ҵԷǴ ˵ ô 40 ѹ˭ѹ (mutation) (chromosome) ʹӹ ѹչ (gene) ѡɳҧѹ ѭѡɳ

ҡǹ (Down's syndrome) ˵ 21 1 ䷻ (karyotype) 47, XX ˭ԧ 47 , XY ѧ˹觢 (Centromere) Ҿ

I.Q. ҳ 20-50 ѭѡɳ ˹ ˭ҡ ǹ ˭˹ 8 ͹ 11 ͹ 23 ͹ 27 ͹ Ш 16

ҡ (Edward's syndrome) ˵ 18 1 ѭ ç ྴҹ ԡԴ

ҡ (Patau syndrome) ˵ 13 1 ѭԡç ԡ ҡ

ʶԵѭҳ 450,000 ô 30 ѭ͹ ҳ 1 ʹ 1,000 ô 44-45 ѭҳ 25 ʹ 1,000

ѭѹ (autosome) ˵ҡ< wbr> (sex chromosome)

ҡŹ (Klinefelter's syndrome) ˵ X 1 2 47 , XXY 48 , XXXY ѡɳҡѭٴ ˹ ѹ ӹ X ҡ ѭ

ҡ (Turner's syndcrome) ˵ X 1 ˭ԧ 45, XO < wbr>ѭѡɳ ѧա Шѹ

 

.. ..

1. ôصԹ 35

2. ʵ 40 ֡ ֡

3. ѧ ֡ص ѭ͹ ֡ ѭ͹ ҹ Ҫҡǹ ӹѭ˵ зͧ ֡Ѵ - ʹ ѡ

4. ˭ѭ͹ ֡ǡѺ١ óШ͹ ѭ