MCQ
Spindle fibres are made of:
- AProtein
- BCellulose
- ✓Lipid
- DPectin
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| Column - $I$ | Column - $II$ |
|
$(i)$ Chrysophyta |
$(a)$ Fungi |
|
$(ii)$ Gonyaulax |
$(b)$ Diatom |
| $(iii)$ Penicillium | $(c)$ Plasmodium |
|
$(iv)$ Slime mould |
$(d)$ Dinoflagellate |
Assertion $(A)$:
Osteoporosis is characterised by decreased bone mass and increased chances of fractures.
Reason $(R)$ :
Common cause of osteoporosis is increased levels of estrogen.
In the light of the above statements, choose the most appropriate answer from the options given below: