Haplodiploidy
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Haplodiploidy is a sex-determination system in which males develop from unfertilized eggs and are haploid, and females develop from fertilized eggs and are diploid. Haplodiploidy is sometimes called a
Honey bee workers are unusually closely related to their full sisters (same father) because of their haplodiploid inheritance system.
Mice X Y chromosomes
Bee
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Bees are winged insects that form a monophyletic clade Anthophila within the superfamily Apoidea of the order Hymenoptera, with over 20,000 known species in seven recognized families. Some species – i
Haplodiploidy
…eggs and are diploid. Haplodiploidy is sometimes called arrhenotoky. Haplodiploidy determines the sex in all members of the insect orders Hymenoptera (bees, ants, wasps and sawflies) and Thysanoptera (thrips). The system also occurs sporadically in some spider mites, Hemiptera, Coleoptera (bark beetles…
Tetragonula carbonaria
Head of a male carpenter bee, showing antennae, three ocelli, compound eyes, and mouthparts
The lapping mouthparts of a honeybee, showing labium and maxillae
Long-tongued bees and long-tubed flowers coevolved, like this Amegilla species (Apidae) on Acanthus ilicifolius.