Question

Which one of the following sets of items in the option (a-d) are correctly categorized with one exception in it?

	Items	Category	Exception
1.	UAA, UAG, UGA	Stop codons	UAG
2.	Kangaroo, Koala, Wombat	Australian, marsupials	Wombat
3.	Plasmodium, Cuscuta, Trypanosoma	Protozoan	Cuscuta
4.	Typhoid, pneumonia, diphtheria	Bacteria diseases	Diphtheria

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

The correct option is C 3

Plasmodium and Trypanosoma are protozoans. Protozoans belong to kingdom protista. They are classified on the basis of locomotory organelles.

Plasmodium is a sporozoan type of protozoa. They are endoparasites. Locomotory orgenelles are absent in them. It is the malarial parasite. It needs to hosts for completing its life cycle, i.e. female Anopheles mosquito and human beings.

Trypanosoma is a zooflagellate. They possess flagella for locomotion. They are the parasite for sleeping sickness. In human beings, this parasite lives in the blood plasma.

Cuscuta is a parasitic plant. It belongs to kingdom plantae. It is an angiosperm. It has no chlorophyll, so it cannot perform photosynthesis. Hence, it grows on other plant taking their nutrients and make the host plant weak.