MCQ
Bacillusthuringiensis is used to control
- ABacterial pathogens
- BViral pathogens
- CProtozoans
- ✓Insect pests
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Column-$I$ |
Column-$II$ |
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$(a)$ Tricuspid valve |
$(i)$ Between left atrium and left ventricle |
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$(b)$ Bicuspid valve |
$(ii)$ Between right ventricle and pulmonary artery |
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$(c)$ Semilunar valve |
$(iii)$ Between right atrium and right ventricle |
$R$ : It allows diffusion of water vapour from atmosphere to the body.

$(1)$ Haemophilia is a sexlinked recessive disease.
$(2)$ Down’s syndrome is due to aneuploidy.
$(3)$ Phenylketonuria is an autosomal recessive gene disorder.
$(4)$ Sickle cell anaemia is an $X$-linked recessive gene disorder.