(B) The first pheromone to be chemically identified was $Bombykol$,which is secreted by the female silkworm $Bombyx mori$. This discovery was made by

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(B) The first pheromone to be chemically identified was $Bombykol$,which is secreted by the female silkworm $Bombyx mori$. This discovery was made by the German biochemist $Adolf Butenandt$ and his colleagues,including $Peter Karlson$,in $1959$. Since $Karlson$ is the only name listed among the researchers involved in this landmark study,$B$ is the correct answer.

Class 12 Biology Microbes in Human Welfare Mix Examples - Microbes in Human Welfare

Easy

Who conducted the first study identifying $Bombykol$ as a pheromone?

A
$Jhonson$
B
$Karlson$
C
$Tyson$
D
$None$

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Class 12 Questions

Class 12

Biology Questions

Chapter

Microbes in Human Welfare

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Mix Examples - Microbes in Human Welfare

$S -$ Statement: Cellulase is used in laundry to remove oily stains.
$R -$ Reason: Cyclosporin-$A$ is used to prevent blood clotting in blood vessels.

Medium

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Match the following columns:
Column-$I$ Column-$II$
$(a)$ Distillation $(1)$ Rhizobium
$(b)$ Non-distillation $(2)$ Azotobacter
$(c)$ Symbiotic $(3)$ Beer and Wine
$(d)$ Free-living $(4)$ Whisky,Brandy,Rum

Medium

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Match the following columns and select the correct option.
Column-$I$ Column-$II$
$(a)$ $LAB$ $(i)$ Cattle feed
$(b)$ $Saccharomyces$ $(ii)$ Increases quality of Vitamin $B_{12}$
$(c)$ $Propionibacterium$ $(iii)$ Bread making
$(d)$ Silage $(iv)$ Swiss cheese

Medium

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Match the following columns:
Column-$I$ Column-$II$
$(a)$ Flocs $(1)$ Biocontrol agent
$(b)$ Methanobacterium $(2)$ Biological treatment
$(c)$ Ladybird $(3)$ Biofertilizer
$(d)$ Cyanobacteria $(4)$ Biogas production

Medium

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Which of the following is an antifungal antibiotic?

Easy

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Column-$I$	Column-$II$
$(a)$ Distillation	$(1)$ Rhizobium
$(b)$ Non-distillation	$(2)$ Azotobacter
$(c)$ Symbiotic	$(3)$ Beer and Wine
$(d)$ Free-living	$(4)$ Whisky,Brandy,Rum

Column-$I$	Column-$II$
$(a)$ $LAB$	$(i)$ Cattle feed
$(b)$ $Saccharomyces$	$(ii)$ Increases quality of Vitamin $B_{12}$
$(c)$ $Propionibacterium$	$(iii)$ Bread making
$(d)$ Silage	$(iv)$ Swiss cheese

Column-$I$	Column-$II$
$(a)$ Flocs	$(1)$ Biocontrol agent
$(b)$ Methanobacterium	$(2)$ Biological treatment
$(c)$ Ladybird	$(3)$ Biofertilizer
$(d)$ Cyanobacteria	$(4)$ Biogas production

Who conducted the first study identifying $Bombykol$ as a pheromone?

Similar Questions

$S -$ Statement: Cellulase is used in laundry to remove oily stains.$R -$ Reason: Cyclosporin-$A$ is used to prevent blood clotting in blood vessels.

Match the following columns:Column-$I$Column-$II$$(a)$ Distillation$(1)$ Rhizobium$(b)$ Non-distillation$(2)$ Azotobacter$(c)$ Symbiotic$(3)$ Beer and Wine$(d)$ Free-living$(4)$ Whisky,Brandy,Rum

Match the following columns and select the correct option.Column-$I$Column-$II$$(a)$ $LAB$$(i)$ Cattle feed$(b)$ $Saccharomyces$$(ii)$ Increases quality of Vitamin $B_{12}$$(c)$ $Propionibacterium$$(iii)$ Bread making$(d)$ Silage$(iv)$ Swiss cheese

Match the following columns:Column-$I$Column-$II$$(a)$ Flocs$(1)$ Biocontrol agent$(b)$ Methanobacterium$(2)$ Biological treatment$(c)$ Ladybird$(3)$ Biofertilizer$(d)$ Cyanobacteria$(4)$ Biogas production

Which of the following is an antifungal antibiotic?

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$S -$ Statement: Cellulase is used in laundry to remove oily stains.
$R -$ Reason: Cyclosporin-$A$ is used to prevent blood clotting in blood vessels.

Match the following columns:
Column-$I$ Column-$II$
$(a)$ Distillation $(1)$ Rhizobium
$(b)$ Non-distillation $(2)$ Azotobacter
$(c)$ Symbiotic $(3)$ Beer and Wine
$(d)$ Free-living $(4)$ Whisky,Brandy,Rum

Match the following columns and select the correct option.
Column-$I$ Column-$II$
$(a)$ $LAB$ $(i)$ Cattle feed
$(b)$ $Saccharomyces$ $(ii)$ Increases quality of Vitamin $B_{12}$
$(c)$ $Propionibacterium$ $(iii)$ Bread making
$(d)$ Silage $(iv)$ Swiss cheese

Match the following columns:
Column-$I$ Column-$II$
$(a)$ Flocs $(1)$ Biocontrol agent
$(b)$ Methanobacterium $(2)$ Biological treatment
$(c)$ Ladybird $(3)$ Biofertilizer
$(d)$ Cyanobacteria $(4)$ Biogas production