Given below are some statements about chromosomal disorders. 

1: They can be caused due to failure in process completion during chromatid separation. 

2: They can be caused due to failure in process completion during cytokinesis. 

3: They arise only in sex chromosomes. 

4: They can be inherited. 

Which of the above-mentioned statements/s is/are TRUE? 

A. only 1 

B. only 2 

C. only 3 and 4 

D. only 1, 2 and 4


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D. only 1, 2 and 4