Tobacco mosaic virus (TMV) is a simple rod-shaped helical virus that contains single stranded RNA situated at its middle and is surrounded by a protein coat called capsid. After tobacco mosaic virus enters its infected host cells through mechanical inoculation, it removes its capsid to release its single stranded viral nucleic acid which is then transported into the nucleolus. The single stranded viral RNA actuates the production of specific enzymes (RNA polymerases) and it also produces another RNA strand (replicative RNA). The new viral-RNAs are transported from the nucleus into the cytoplasm and functions as messenger-RNAs (mRNAs). Each mRNA, ribosomes, and t-RNA, of the infected host cell all controls the production of protein subunits (capsomeres). After the production of the preferred capsomeres, the new viral-RNAs arrange the capsomeres around it which lead to the production of a complete virus particle (virion). The viruses then migrate from one cell to another. Hence, creating organized infection.
Answer:
The answer is a).I think so...Tell me if I'm wrong
Answer:
The solution is<u> hypotonic</u>
Explanation:
Molecules in a solution move from <u>highly concentrated</u> regions to regions of <u>low concentration</u> in an effort to reach a state of equilibrium- where the molecules are equally distributed. This always occurs with the molecules moving down the concentration gradient.
Solutions can be:
- hypertonic, or more concentrated;
- hypotonic- less concentrated
- isotonic- same concentration
At 40% salt concentration, solution A is <u>hypertonic</u> while the less concentrated solution at 0% salt concentration is<u> hypotonic</u>.
The organism which is multicellular and that it first digests, then absorbs nutrients from the environment around it, best fits into the classification of fungi.
Multicellular organisms are those that are comprised of more than one cell in their body. They can either have a loose composition of various cells or have a complete organ-system kind of body. The example include all animals and plants.
Fungi is the kingdom consisting of multicellular eukaryotic organisms. The mode of nutrition in fungi is heterotrophic. It can be of various types like holozoic, saprophytic and parasitic. However the saprophytic mode is more predominant.
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