Chapter 22 - Variation and Genetics - 9


Biology Class 12
1. Males are hemizygous as they carry just one allele on their only X chromosome.


2. Protanopias is green blindness.


3. Hypophosphatemic rickets is an X− linked dominant trait


4.    ″SRY″ gene on X chorosome determines maleness in man.


5. Diabetes is the leading cause to kidney failure and adult blindness.


6. About 80 % of cases of MODY are caused by mutations in glucokinasegene.


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