Normal Karyotype & Variations

Question 1

Down Syndrome/ Trisomy 21

Answer 1

> Caused by third chromosome
Physical growth delays
Particular set of facial characteristics

Question 2

Klinfelters Syndrome

Answer 2

TRISOMY : Two X and one Y chromosome

MONOSOMY : Only one X chromosome

Question 3

Edwards Syndrome

Answer 3

> Only one X and one Y

> Disproportionate physique

Question 4

Chromosomal mutations

Answer 4

Are lethal and most likely lead to miscarriage. But three types can survive