A virus is an infectious agent with its genome is uncoated from the protein and injected into the host cell. This means they can only replicate within a host organism, literally taking over the host's functions. Then the viral genome hijacks the host cell's machinery, and to produce viral proteins, it forces the cell to replicate the viral genome. So, viruses depend on the host cells that they infect to reproduce.
<u>B) is a plant cell and D) is an animal cell.</u> They are both structural and functional unit of all living organisms, they do not need another cell to copy its genetic material. <u>And C) is a bacteria</u>, which reproduces by binary fission. In this process the bacterium divides into two identical daughter cells, and the DNA of the bacterium divides into two. <u>So none of them needs a host cell to copy its genetic material and protein coat.</u>
The virus' DNA becomes a part of the host cell's DNA, and every time the host cell copies and divides, it also copies viral DNA. The viral DNA may remain inactive (a provirus) for a long time, but it can become active when it frees itself from the host's chromosome, which triggers the lytic cycle.
Plant cells and animal cells undergo the same cellular processes during mitosis.
The centrioles absent in the plant.
Animals cells have centrioles, to what delivers the shaft strands is one of the differences among plant and creature mitosis.
The periods of mitosis and goes on in each stage is the equivalent aside from when it comes to how cytokinesis is practiced.
<em>Plant cells separate the cytoplasm between the two new cores by framing a cell plate (new cell wall)between the cores.</em>
Animals cells achieve this by shaping a cleavage wrinkle which is a squeezing in at the center of the<em> </em><em>cell until two new cells have been framed with cytoplasm and organelles for each new nuclei.</em>
These pigments give plants, flowers, and fruits, their brilliant colors ranging from pink through scarlet, purple, and blue. Anthocyanins are particularly found in fruits such as grapes, purple grapes, black berries, strawberries, and raspberries.
