MCQ
Emphysema is a chronic disorder which is caused due to
- ADamaged trachea
- BDamaged nostrils
- ✓Damaged alveolar walls
- DDamaged lungs
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$(a)$ Stimulates the process of bone resorption
$(b)$ Decreases $Ca ^{2+}$ level in blood
$(c)$ Reabsorption of $Ca ^{2}+$ by renal tubules
$(d)$ Decreases the absorption of $Ca ^{2+}$ from digested food
$(e)$ Increases metabolism of carbohydrates
Choose the most appropriate answer from the options given below:
| List $I$ | List $II$ |
|
$A$. Two or more alternative forms of a gene |
$I$. Backcross |
| $B$. Cross of $F_1$ progeny with homozygous recessive parents | $II$. ploidy |
| $C$. Cross of $F_1$ progeny with any of the parents | $III$. Allele |
| $D$. Number of chromosome sets in plant | $IV$. Test cross |
Choose the correct answer from the options given below: