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Which one of the following sets of items in the options is correctly categorised with one exception in it?
A
Items: Typhoid, Pneumonia, Diphtheria – Category: Bacterial diseases – Exception: Diphtheria
B
Items: UAA, UAG, UGA – Category: Stop codons – Exception: UAG
C
Items: Kangaroo, Koala, Wombat – Category: Australian marsupials – Exception: Wombat
D
Items: $Plasmodium$, $Cuscuta$, $Trypanosoma$ – Category: Protozoan parasites – Exception: $Cuscuta$
Detailed Solution
$Plasmodium$ (malaria) and $Trypanosoma$ (sleeping sickness) are protozoan parasites, but $Cuscuta$ is a parasitic flowering plant. So this set has exactly one exception and it is correctly named as $Cuscuta$.
Typhoid, pneumonia and diphtheria are all bacterial diseases, so diphtheria is not an exception.
UAA, UAG and UGA are all stop codons, so UAG is not an exception.
Kangaroo, koala and wombat are all Australian marsupials, so wombat is not an exception.
Hence the set with a genuine exception is $Plasmodium$, $Cuscuta$, $Trypanosoma$ – protozoan parasites – with $Cuscuta$ as the exception.
Typhoid, pneumonia and diphtheria are all bacterial diseases, so diphtheria is not an exception.
UAA, UAG and UGA are all stop codons, so UAG is not an exception.
Kangaroo, koala and wombat are all Australian marsupials, so wombat is not an exception.
Hence the set with a genuine exception is $Plasmodium$, $Cuscuta$, $Trypanosoma$ – protozoan parasites – with $Cuscuta$ as the exception.