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Which of the following statements are correct?
(i) Failure of segregation of chromatids during cell division results in aneuploidy.
(ii) Chromosomal disorders are mainly determined by alteration or mutation in a single gene.
(iii) Thalassemia and cystic fibrosis are Mendelian disorders.
(iv) Sickle cell anaemia is an X-linked trait.
(v) Haemophilia is an autosome linked recessive disease.
(a) (i) and (iii)
(b) (i), (iii) and (iv)
(c) (iii) and (iv)
(d) (ii) and (iii)
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