MCQ
Which is not correct about bones?
- AGround substance is hard and non pliable.
- BIt is connective tissue.
- CBones support and protect softer tissuesand organs.
- ✓Bone marrow is not site for production of blood cells.
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$I.$ pumping of $C a^{2+i i}$ ions in sarcoplasmic reticulum
$II.$ presence of $ATP$
$III.$ confirmational changes in troponin and masking the actin filament
Option containing correct statement is
$I.$ Colostrum is recommended for the new borns because it is rich in antigens.
$II.$ Chikungunya is caused by a Gram negative bacterium.
$III.$ Tissue culture has proved useful in obtaining virus-free plants.
$I V.$ Beer is manufactured by distillation of fermented grapes.
How many of the statement(s) is/are correct?