Q4 of 26 Page 1

How do monocytes act as a cellular barrier in humans to provide innate immunity?

Monocytes are phagocytic cells in nature, they destroy foreign organisms (like pathogens in the blood) entering the human body, thereby providing innate immunity to foreign organisms and hence act as a cellular barrier in humans.


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Write the sex of a human having XXY chromosomes with 22 pairs of autosomes. Name the disorder this human suffers from.

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Why do DNA fragments move towards the anode during gel electrophoresis?

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(a) Why do organisms like algae and fungi shift from asexual mode of reproduction to sexual mode?

(b) What is a juvenile phase in organisms?