MCQ
Mad cow disease in cattle is caused by an agent which has:
- AInert crystal
- ✓Abnormally folded protein
- CFree RNA without protein coat
- DFree DNA without protein coat
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Choose the correct option $A$ and $B$
$(a)$ The sporophyte in liverworts is more elaborate than that in mosses
$(b)$ Salvinia is heterosporous
$(c)$ The life cycle in all seed-bearingplants is diplontic
$(d)$ In pinus male and female cones areborne on different trees