Samacheer Kalvi Class 11 Plant, Animal Kingdom Questions - 1

Question: 1

An example of colonial algae is

(A) Spirogyra

(B) Chlorella

(C) Ulothrix

(D) Volvox

Question: 2

Viroids differ from viruses in having

(A) DNA molecules with protein coat

(B) RNA molecules with protein coat

(C) RNA molecules without protein coat

(D) DNA molecules without protein coat

Question: 3

Which of the following statements is wrong for viroids?

(A) Their RNA Is a high molecular weight

(B) They lack a protein coat

(C) They are smaller than viruses

(D) They causes infections

Question: 4

Which part of the tobacco plant is infected by Meloidogyne incognita?

(A) Root

(B) Stem

(C) Leaf

(D) Flower