PATHOLOGY MCQ
CELL DAMAGE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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mutations can alter the molecular structure of cell membranes
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each cell expresses a different combination of genes
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scientists have discovered how to alter the DNA sequences of humans
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different cells utilize various forms of RNA nucleotides
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Detailed explanation-1: -Examples of cell differentiation occur by means of sexual reproduction; both plants and animals are created from a single cell, a fertilized egg or zygote. To create a multicellular creature, these cells must undergo mitosis.
Detailed explanation-2: -A multicellular organism develops from a single cell (the zygote) into a collection of many different cell types, organized into tissues and organs. Development involves cell division, body axis formation, tissue and organ development, and cell differentiation (gaining a final cell type identity).
Detailed explanation-3: -The cell types in a multicellular organism become different from one another because they synthesize and accumulate different sets of RNA and protein molecules. They generally do this without altering the sequence of their DNA.
Detailed explanation-4: -Pluripotent stem cells have the ability to differentiate into all of the cells of the adult body. Adult stem cells are found in a tissue or organ and can differentiate to yield the specialized cell types of that tissue or organ.