Which insects follow the haplodiploidy sex determination system?

• A. Honeybees
• B. Mosquitoes
• C. Butterflies
• D. Fruit flies

Answer: (A)

Verified step by step guidance

1. Understand the concept of haplodiploidy: In the haplodiploidy sex determination system, sex is determined by the number of sets of chromosomes an individual receives. Typically, males are haploid (having one set of chromosomes) and develop from unfertilized eggs, while females are diploid (having two sets of chromosomes) and develop from fertilized eggs.
2. Identify the insects that use haplodiploidy: Research which insect species utilize this system. Haplodiploidy is most commonly found in certain Hymenoptera, such as bees, ants, and wasps.
3. Analyze the options given: Honeybees, mosquitoes, butterflies, and fruit flies are the options provided. Consider which of these insects belong to the Hymenoptera order.
4. Recognize that honeybees are part of the Hymenoptera order: Honeybees are well-known examples of insects that follow the haplodiploidy system, where males (drones) are haploid and females (workers and queens) are diploid.
5. Conclude that honeybees are the correct answer: Based on the understanding of haplodiploidy and the classification of the insects listed, honeybees are the insects that follow the haplodiploidy sex determination system.