What is the correct answer?


Which of the following statement is incorrect ?

A. TMV has a double-stranded RNA molecule.

B. Most plant viruses are RNA viruses.

C. The bacteriophage has a double-stranded DNA molecule.

D. Most animal viruses are DNA viruses.

Correct Answer :

A. TMV has a double-stranded RNA molecule.

Tobacco mosaic virus (TMV) is a single stranded RNA virus that infects a wide range of plants, especially tobacco and other members of the family solanacea. The infection causes characteristic patterns, such as mosaic-like mottling and discolouration on the leaves (hence the name). TMV was the first virus to be discovered.

Related Questions

Protista includes Which of the following is the correct sequence of three steps in the sexual… Which of the following statements regarding cyanobacteria is incorrect? Which of the following statement is/ are correct for bacteria ? A virus can be considered a living organism because it Bacteria and yeast are similar in all the following features except that Protozons are not included in kingdom animalia because they are Which group of fungi is commonly known as imperfect fungi ? The given statements are some characters of a particular group of Kingdom… Which class of fungi lacks sex organs but the process of plasmogamy is… Bacteria were regarded to be plants because When a moist bread is kept exposed in air, it becomes mouldy and black… How many bacteria are produced in four hours if a bacterium divides once… Which of the following kingdom does not have nuclear membrane ? Read the following statements and answer the question given below(i) They… The genetic material of virus includes Identify the following figures A, B and C.  Which of the following is not a viral disease ? Which of the following statement(s) is/are correct about ascomycetes ?(i)… Which statement is not correct for viruses ? Select the correct match from the given option. The given characters are seen in which of the following group?(i) Unicellular,… Match column I with column II and choose the correct option.Column IColumn… Match the class of fungi given in column I with their examples given in… Which of the following statement is not correct for methanogens? The bacteria which oxidize various inorganic substances and use the released… Mycorrhizae are useful for plants because they Read the given statements and answer the question.(i) It includes unicellular… Which of the following group of kingdom protista is being described by… Which of the following are the characters of dinoflagellates?(i) They…