Answer:
Nuclear chromatin clumping is increased in the metamyelocytes, nuclei disappears and granules are mostly secondary
Explanation:
- Metamyelocyte is the cell that is undergoing granulopoiesis and is derivative of a myelocyte. It is characterized by the bent nucleus type of appearance, cytoplasm consists of the cytoplasmic granules and visible type of nucleoli are absent.
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Myelocytes are the cells occurring in a bone marrow; cells with cytoplasmic granules which that produces granulocytes of the blood. It doesnot occur normally in the blood as in leukaemia.
A segmented viral genome can facilitate rapid evolution of new viral strains.
Explanation:
Viruses are non-cellular entities which contain one or molecules of DNA or RNA as their genetic material enclosed inside a protein capsule.
Viruses are obligate intracellular parasites and cannot replicate outside a living cell.
The virus integrates its genome into the host genome and uses its mechanism to replicate its genome.
In other words we can say that viruses actually hijack hosts replication machinery.
The fragment of viral genome which disintegrates itself from the host genome after successful replication might carry fragments of host genome. Thus the viral genome gets modified and may evolve.
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Alfred Wegener suggested the Continental Drift Theory.
However, this idea was dismissed by scientists. Continental Drift Theory states
that all continents were once joined together then they drifted away from each
other. It was backed by maps which showed that if continents were pulled close
together would fit each other perfectly, just like in a puzzle. However
scientists from different fields resisted the idea and accused Wegener of not being an expert of science. The strongest reason of the
rejection, however, was that Wegener could not explain how continental drift
happened.
Answer:
The procedure is based on the reaction between peptidoglycan in the cell walls of some bacteria. The Gram stain involves staining bacteria, fixing the color with a mordant, decolorizing the cells, and applying a counterstain.
