ݺߣ

ݺߣShare a Scribd company logo

จีȨȨครโมโซมเพศ

•Download as DOCX, PDF•
•
B
Bhongsadhorn Bhansamdaeng

1. Thomas Hunt Morgan conducted experiments with fruit flies to demonstrate that genes are located on chromosomes. 2. He found that certain traits like eye color in fruit flies were sex-linked, meaning they were located on the X chromosome and exhibited different inheritance patterns between males and females. 3. His work provided early evidence that chromosomes are the structures that carry genetic information from one generation to the next.

1 of 4
Download to read offline
23 22 1 XX XY X Y Thomas Hunt Morgan 4 3 1 XY XX F1 F2 2 1 1 2 2 + F1 = F1 + F2 = X Y + X X Gamete X Y + X (2x1=2) F1 X X ( , X Y ( F1
X Y + X X Gamete X Y + X , X (2x2=4) F2 X X , X X , X Y , X Y F2 X X ( , X X ( , X Y( , X Y( X X Y -- sex- linked gene X X-linked gene 100 G-6-PD XC Y XC XC - XC Xc Xc Y Xc Xc hemophilia) XH Y XH XH - XH Xh Xh Y Xh Xh G-6-PD glucose-6- phosphase dehydrogenase deficiency) XG Y XG XG
- XG Xg Xg Y Xg Xg XC Y + Xc Xc XC , Y + Xc (2x1=2) XC Xc , Xc Y 100% 100 Xh Y + XH Xh Xh , Y + X H , Xh (2x2=4) XH Xh , Xh Xh , XH Y , Xh Y 50% 50% 50% 50% G-6-PD G-6-PD XG Y + X g Xg XG , Y + Xg (2x1=2) XG Xg , Xg Y 100% 100% Karyotype XY XX ZZ ZW
XO XX XO X-linked gene pedigree)  

More Related Content

จีȨȨครโมโซมเพศ

  • 1. 23 22 1 XX XY X Y Thomas Hunt Morgan 4 3 1 XY XX F1 F2 2 1 1 2 2 + F1 = F1 + F2 = X Y + X X Gamete X Y + X (2x1=2) F1 X X ( , X Y ( F1
  • 2. X Y + X X Gamete X Y + X , X (2x2=4) F2 X X , X X , X Y , X Y F2 X X ( , X X ( , X Y( , X Y( X X Y -- sex- linked gene X X-linked gene 100 G-6-PD XC Y XC XC - XC Xc Xc Y Xc Xc hemophilia) XH Y XH XH - XH Xh Xh Y Xh Xh G-6-PD glucose-6- phosphase dehydrogenase deficiency) XG Y XG XG
  • 3. - XG Xg Xg Y Xg Xg XC Y + Xc Xc XC , Y + Xc (2x1=2) XC Xc , Xc Y 100% 100 Xh Y + XH Xh Xh , Y + X H , Xh (2x2=4) XH Xh , Xh Xh , XH Y , Xh Y 50% 50% 50% 50% G-6-PD G-6-PD XG Y + X g Xg XG , Y + Xg (2x1=2) XG Xg , Xg Y 100% 100% Karyotype XY XX ZZ ZW
  • 4. XO XX XO X-linked gene pedigree)  