MCQ
In tissue $pO _2$ and $pCO _2$ are respectively :
- A45 mmHg and 40 mmHg
- ✓40 mmHg and 45 mmHg
- C40 mmHg and 40 mmHg
- D45 mmHg and 45 mmHg
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$A$ - number of chromosomes in endosperm
$B$ - number of chromosomes in egg cell
$C$ - number of chromosomes in polar nuclei
