Chapter 2: Biological Classification

All eukaryotic unicellular organisms belong to

a. Monera

b. Protista

c. Fungi

d. Bacteria

The five-kingdom classification was proposed by

a. R.H. Whittaker

b. C.Linnaeus

c. A. Roxberg

d. Virchow

Organisms living in salty areas are called as

a. Methanogens

b. Halophiles

c. Heliophytes

d. Thermoacidophiles

Naked cytoplasm, multinucleated and saprophytic is the characteristics of

a. Monera

b. Protista

c. Fungi

d. Slime moulds

An association between roots of higher plants and fungi is called

a. Lichen

b. Fern

c. Mycorrhiza

d. BGA

A dikaryon is formed when

a. Meiosis is arrested

b. The two haploid cells do not fuse immediately

c. Cytoplasm does not fuse

d. None of the above

Contagium vivum fluidum was proposed by

a. D.J. Ivanowsky

b. M.W. Beijerinek

c. Stanley

d. Robert Hook

Associations between Mycobiont and Phycobiont are found in

a. Mycorrhiza

b. Root

c. Lichens

d. BGA

Difference between Virus and Viroid is

a. Absence of protein coat in viroid but present in virus

b. Presence of low molecular weight RNA in the virus but absent in viroid

c. Both a and b

d. None of the above

With respect to fungal sexual cycle, choose the correct sequence of

events

a. Karyogamy, Plasmogamy and Meiosis

b. Meiosis, Plasmogamy and Karyogamy

c. Plasmogamy, Karyogamy and Meiosis

d. Meiosis, Karyogamy and Plasmogamy