MCQ
According to $IUCN$ red list $(2004)$ documents total how many species extinct ?
- A$786 $
- ✓$ 784 $
- C$ 756 $
- D$ 734$
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Match List $I$ with List $II$ : Choose the correct answer from the options given below :
| List $I$ | List $II$ |
| $A.$ Down's syndrome | $I.$ $11^{th}$ chromosome |
| $B.$ $\alpha -$Thalassemia | $II.$ $X$ chromosome |
| $C.$ $\beta -$Thalassemia | $III.$ $21^{st}$ chromosome |
| $D.$ Klinefelter's syndrome | $IV.$ $16^{th}$ chromosome |