Nurturing Life Sciences
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#XL - T Zoology
In haplodiploid organisms, males are haploid, and females are diploid. Consider the relatedness diagram shown below. Female A has a full-sister, Y, who has a daughter, B. The relatedness between A and B is ___________.
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Diphtheria
Natural infection with C. diphtheriae occurs only in humans and is spread by respiratory droplets.
The organism colonizes the nasopharyngeal tract and causes little tissue damage, with only a mild inflammatory reaction.
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