Given are the statements regarding linkages of genes: (i) The strength of the linkage is determi...

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Given are the statements regarding linkages of genes:
(i) The strength of the linkage is determined by the distance between the 2 genes in question.
(ii) The strength of the linkage is directly proportional to the distance between the two genes.
(iii) The two genes are said to be linked when they fail to show independent assortment.
Out of these statements:
(a) all are correct
(b) (i) and (ii) are correct
(c) (i) and (iii) are correct
(d) (ii) and (iii) are correct
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