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Question
Sex in honey bee is determined by ______.
Options
X : A ratio
the presence of Y chromosome
environmental temperature
haplo-diploidy
Solution
Sex in honey bee is determined by haplo-diploidy.
Explanation:
The fertilisation and non-fertilization of eggs are central to understanding sex determination in honey bees. Johann Dzierzon discovered this type of sex determination in 1845.
Male progeny develops from unfertilized eggs in the Haplo-diploid system. The eggs are haploid, with only one set of chromosomes. These are drones or male honey bees. Queens and worker bees hatch from fertilised honey bee eggs, which have two sets of chromosomes and function as diploid eggs. Honey bees exhibit this type of Haplo-diploid sex determination.
Females are heterozygous (ZW) and males are homozygous (ZZ) for the ZZ and ZW types of sex determination in birds (ZZ).
