A researcher lyses a cell that contains nucleic acid molecules and capsomeres of tobacco mosaic virus (TMV). The cell contents are left in a covered test tube overnight. The next day this mixture is sprayed on tobacco plants. What would you expect to happen to the plants that were sprayed with the mixture? (A) The plants would develop some but not all of the symptoms of the TMV infection. (B) The plants would develop the typical symptoms of TMV infection. (C) The plants would not show any disease symptoms. (D) The plants would become infected, but extracts from these plants would be unable to infect other plants.

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bluetigerbird1945 bluetigerbird1945

23-08-2022
Biology

Answered

A researcher lyses a cell that contains nucleic acid molecules and capsomeres of tobacco mosaic virus (TMV). The cell contents are left in a covered test tube overnight. The next day this mixture is sprayed on tobacco plants. What would you expect to happen to the plants that were sprayed with the mixture? (A) The plants would develop some but not all of the symptoms of the TMV infection. (B) The plants would develop the typical symptoms of TMV infection. (C) The plants would not show any disease symptoms. (D) The plants would become infected, but extracts from these plants would be unable to infect other plants.

Answer :

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shalvivt shalvivt · Answer 1 · 2022-08-30T05:16:13-04:00

Mixture is sprayed on tobacco plants the plants would become infected, but extracts from these plants would be unable to infect other plants. Thus, option D is correct.

What is virus?

A virus is a microscopic organism that causes serious diseases and they are only active and alive when they enter into host body.

The structure of virus is very simple and the virion contains single molecule of nucleic acid which is covered by a coat of protein known as capsid.

The viruses may contain DNA or RNA any one of them. They never contain both DNA as well as RNA and its nucleic acid is either single stranded or double stranded.

Therefore, Mixture is sprayed on tobacco plants the plants would become infected, but extracts from these plants would be unable to infect other plants. Thus, option D is correct.

Learn more about virus here:

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