Aresearcher lyses a cell that contains nucleic acid mole ules and capsomeres of tobacco mosaic virus (tmv). the celil contents are left covered in a test tube overnight. the next day this m is sprayed on tobacco plants. which of the following woult be expected to occur? a. the plants would develop some but not all of the sympoms of tmv infection. b. the plants would develop symptoms typically produced by viroids. c. the plants would develop the typical symptoms of tmv infection d. the plants would not show any disease symptoms. e. the plants would become infected, but the sap from these plants would be unable to infect other plants.

The correct answer is option C. "The plants would develop the typical symptoms of TMV infection".

Explanation:

Tobacco mosaic virus (TMV) is a pathogen that infects tobacco and a wide range of plants, particularly Solanaceae. The capsomeres of TMV are the units that divide the structure of the TMV, each one contains 158 amino acids and protect the genetic material of the virus. A researcher that lyses a cell containing capsomeres of TMV, let it resting overnight and spray it to tobacco plants, will cause that the plants develop the typical symptoms of TMV infection. The capsomeres in the lysed cells would allow the formation of new viruses that will infect the tobacco plants the next day.

each of the 46 original chromosomes splits into two daughter chromosomes, so there are two sets of 46 daughter chromosomes that end up in each cell. human cells have 46 chromosomes. each chromosome consists of a pair of identical chromatids attached together by a structure called a centromere.

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