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  4. Turner's syndrome is an example of

Q. Turner's syndrome is an example of

 1949  245 COMEDKCOMEDK 2006Principles of Inheritance and Variation Report Error

Solution:

Turner's. syndrome (Turner, 1938) or gonadal dysgenesis is due to monosomy (2n-1) · of sex chromosomes. It is formed by the union of an abnormal egg and a normal X sperm or a normal egg and an abnormal sperm. The individual has 2n = 45 chromosomes (44 + X); instead of 46. Such persons are sterile females who have· rudimentary ovaries, undeveloped breasts, small. uterus, puffy. fingers, short stature (less thari 5 feet), webbed neck, abnormal intelligence etc.