NEET Biology question
Match column I with column II and select the correct option from the given codes.
| Column I | Column II | |---|---| | A. Chromosomal aberration | (i) An additional sex chromosome | | B. Down's syndrome | (ii) Inversion | | C. Klinefelter's syndrome | (iii) Presence of an extra chromosome | | D. Turner's syndrome | (iv) Absence of a sex chromosome |
Answer: (C)
Solution
A chromosomal aberration (A) refers to structural changes such as inversion — matching (ii). Down's syndrome (B) is caused by the presence of an extra autosome (trisomy 21) — matching (iii). Klinefelter's syndrome (C) is caused by an
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