OBJECTIVE LIFE SCIENCE
SIGNALLING IMMUNOLOGY CANCER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The amount of DNA in their nucleus
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The number of genes in their nucleus
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The types of proteins in their cells
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None of the above
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Detailed explanation-1: -Red blood cells do not have a nucleus on maturity. WBCs are characterized by the presence of a large central nucleus. Due to the presence of haemoglobin, these cells appear red in colour. These cells are colourless, as they do not have any pigment.
Detailed explanation-2: -Explanation: In terms of function: Red blood cells carry oxygen around the body for respiration to take place while white blood cells defend the body from infections and viruses.
Detailed explanation-3: -Types of white blood cells are granulocytes (neutrophils, eosinophils, and basophils), monocytes, and lymphocytes (T cells and B cells).
Detailed explanation-4: -With a lifespan of roughly 120 days, red blood cells are uniquely shaped as biconcave discs that do not contain nuclei. This glaring omission from its cellular structure allows for the oxygen-carrying protein, hemoglobin, to be transported within red blood cells.