MCQ
An example of a disease of molecular mutation is
- AErythroblastosis fetalis
- BHaemophilia
- CAnaemia
- ✓Sickle-cell anemia
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$A$. Muscle bundles are held together by collagenous connective tissue layer called fascicle.
$B$. Sarcoplasmic reticulum of muscle fibre is a store house of calcium ions.
$C$. Striated appearance of skeletal muscle fibre is due to distribution pattern of actin and myosin proteins.
$D$. $M$ line is considered as functional unit of contraction called sarcomere.
Choose the most appropriate answer from the options given below:
| List $I$ | List $II$ |
| $A$. Heroin | $I$. Effect on cardiovascular system |
| $B$. Marijuana | $II$. Slow down body function |
| $C$. Cocaine | $III$. Painkiller |
| $D$. Morphine | $IV$. Interfere with transport of dopamine |
Choose the correct answer from the options given below: