Biological Classification MCQs Quiz Multiple Choice Questions & Answers

1. A dikaryon is formed when

1. Cytoplasm does not fuse
2. None of the above
3. Meiosis is arrested
4. The two haploid cells do not fuse immediately

2. A virus contains

1. DNA or RNA
2. DNA and RNA
3. DNA
4. RNA

3. African sleeping sickness is caused by

1. Trypanosoma
2. Entamoeba
3. Giardia intestinalis
4. Leishmania

4. All eukaryotic unicellular organisms belong to

1. Fungi
2. Bacteria
3. Monera
4. Protista

5. All fungi are

1. Heterotrophs
2. Parasites
3. Autotrophs
4. Saprotrophs

6. All the bacteria fix nitrogen except

1. Azotobacter
2. Cyanobacteria
3. Rhizobium
4. E Coli

7. An association between roots of higher plants and fungi is called

1. Mycorrhiza
2. BGA
3. Lichen
4. Fern

8. Associations between Mycobiont and Phycobiont are found in

1. Lichens
2. BGA
3. Mycorrhiza
4. Root

9. By how many criteria, living organisms have been classified into five kingdom

1. five
2. Three
3. Two
4. Four

10. Class dicotyledon is divided into

1. 3 sub-classes
2. 2 sub- classes
3. 7 sub-classes
4. 5 sub-classes

11. Contagium vivum fluidum was proposed by

1. Stanley
2. Robert Hook
3. D.J.Ivanowsky
4. M.W.Beijerinek

12. Difference between Virus and Viroid is

1. Both a and b
2. None of the above
3. Absence of protein coat in viroid but present in virus
4. Presence of low molecular weight RNA in the virus but absent in viroid

13. Embryo is not formed in

1. gymnosperm
2. pteridophytes
3. Bryophytes
4. algae

14. Example of blue green algae is in

1. Protistae
2. Plantae
3. Fungi
4. Monera

15. Extra chromosomal, circular, double stranded, self replicating DNA molecule in bacteria is called

1. Phasmid
2. Phagemid
3. Cosmid
4. Plasmid

16. Fruiting body is characteristic of

1. Bryophyta
2. Pteridophyta
3. Algae
4. Lichens

17. Fungi which grow in dung are termed as

1. Sacxicolous
2. Saxiphilous
3. Caprophilous
4. Tericolous

18. Fungus cell wall is made up of

1. Chitin
2. carbohydrates
3. Cellulose
4. Protein

19. Halophiles is also called

1. Cyanobacteria
2. Archaebacteria
3. Eubacteria
4. Actinomyce

20. If the seeds are formed from the megasporophylls and not enclosed in a fruits the plant belongs to

1. angiosperm
2. gymnosperm
3. pteridophyte
4. bryophytes

21. In Fungi reserved food materials are

1. Protein
2. Lipid
3. Glycogen and lipid droplets
4. Starch

22. In lichens fungal component is known as

1. A & B
2. none of these
3. Mycobiont
4. phycobiont

23. In which plant, gametophytic phase is main and sporophytic phase is subsidiary

1. gymnosperms
2. angiosperms
3. Bryophytes
4. pteridophytes

24. Membranous infoling in bacteria that initiate DNA replication is

1. Magnetosome
2. Nucleosome
3. Mesosomes
4. Carboxysome

25. Microsporophyll :stamen then Megasporophyll

1. Pollen grains
2. Ovule
3. Anther
4. Gynoecium

26. Naked cytoplasm, multinucleated and saprophytic is the characteristics of

1. Fungi
2. Slime moulds
3. Monera
4. Protista

27. On the basis of structural form lichen are

1. Fruticose
2. All of three
3. Crustose
4. Foliose

28. Organisms living in salty areas are called as

1. Heliophytes
2. Thermoacidophiles
3. Methanogens
4. Halophiles

29. Plant of this group possess naked seed

1. Gymnosperms
2. Bryophytes
3. Pteridophytes
4. Angiosperms

30. pre-fertilized endosperms is characterstics of

1. gymnosperms
2. bryophytes
3. pteridophyte
4. angiosperms

31. Presence of rigid cell wall is characterized by kingdom

1. monera
2. Animalia
3. Protista
4. plantae

32. Prokaryotes are included in the kingdom

1. Protozoa
2. Basidiomycetes
3. Monera
4. Protista

33. Protista include

1. Yeast, Euglena, Dinoflagellates
2. Mushroom, Paramecium, Euglena
3. Paramecium, Euglena, Dinoflagellates
4. Hydra, Amoeba, Paramecium

34. Some bacteria thrive in extreme environment conditions such as absence of oxygen, high salt concentration, high temperature and acidic pH. Name them

1. Archaebacteria
2. Streptococcus
3. Cyanobacteria
4. Eubacteria

35. Study of lichens is called

1. Lichenology
2. Cytology
3. Algology
4. Mycology

36. Symbiotic relationship is found in

1. Bryophytes
2. Lichens
3. Algae
4. Fungi

37. The biggest and dominant group is

1. gymnosperms
2. angiosperms
3. Bryophytes
4. pteridophytes

38. The first land plant on earth was

1. gymnosperms
2. angiosperms
3. Bryophytes
4. pteridophte

39. The five-kingdom classification was proposed by

1. Roxberg
2. Virchow
3. R.H.Whittaker
4. C.Linnaeus

40. The main structural component of virus is

1. nucleic acid and protein
2. nucleic acid or protein
3. nucleic acid
4. protein

41. The name virus was given by

1. Diener
2. Hershey
3. Ivanowsky
4. Pasteur

42. The plant cell without chloroplast is

1. Bryophytes
2. Pteridophytes
3. Algae
4. Fungi

43. The region where bacterial genome resides is termed as

1. Nucleoid
2. Ribosome free region
3. Nucleus
4. Cytoplasma

44. The salest gymnosperm is

1. Wolffia sp.
2. Sequoia sp.
3. Zamia sp.
4. Eucalypts sp.

45. The study of algae is called

1. Taxonomy
2. Lichenology
3. Mycology
4. Algology

46. The study of fungi is

1. Virology
2. Algology
3. Cytology
4. Mycology

47. The tallest livig tree in the world is

1. Wolffia sp.
2. Sequoia sp.
3. Zamia sp.
4. Eucalyptus sp.

48. The tallest living tree of angiosperm is

1. Eucalyptus sp.
2. sequoia sp.
3. wolffia sp.
4. Zamia sp.

49. TMV virus was discovered by

1. Ivanowsky
2. W M Stanley
3. Pasteur
4. S L Miller

50. Viroids were discovered by

1. Pasteur
2. Iyengar
3. Diener
4. Woese