MCQ
Tobacco smoke contains carbon monoxide, which:
- ✓Reduces the oxygen$-$carrying capacity of blood.
- BCauses gastric ulcers.
- CRaises blood pressure.
- DIs carcinogenic.
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$A$. This disorder was first described by Langdon Down $(1866)$.
$B$. Such an individual has overall masculine development. However, the feminine developement is also expressed.
$C$. The affected individual is short statured.
$D$. Physical, psychomotor and mental development is retarded.
$E$. Such individuals are sterile.
Choose the correct answer from the options given below:
$I.$ increasing $RBC$
$II.$ decreasing binding affinity of haemoglobin
$III.$ increasing binding affinity of haemoglobin
$IV.$ increasing breathing rate
$V.$ decreasing breathing rate
Choose the correct option for given statement