Question

Arrhenotoky is the parthenogenetic development found in:
A. Honey bees, wasps, and ants
B. Mosquitoes
C. Butterflies
D. All insects

Answer 1

Hint: Parthenogenesis is the phenomenon by which egg develops into the young individual without fertilization. Arrhenotoky is a type of haploid parthenogenesis wherein the unfertilized egg develops into a haploid male individual. It is also known as arrhenotokous parthenogenesis.

Complete answer:
 To solve the question we must know about arrhenotokous parthenogenesis.
In sexual reproduction, the egg is fertilized by the sperm. This fusion of the egg and the sperm form a zygote which further develops into an embryo.

Now, parthenogenesis is the phenomenon in which the egg remains unfertilized and develops into an embryo. Parthenogenetically developed offspring are usually females.

Parthenogenesis may be haploid or diploid. The haploid parthenogenesis is known as Arrhenotoky. In Arrhenotoky, the haploid egg is not fertilized by the sperm. The peculiar feature of this type of parthenogenesis is that the unfertilized haploid egg develops into a male individual.

Arrhenotoky is the parthenogenetic development found in honey bees, wasps, and ants.
In such insects, usually, the male offspring are produced parthenogenetically while the female offspring are produced sexually through the fertilized egg.


Since we are well aware of the arrhenotokous parthenogenesis, therefore the correct answer to the question is honey bees, wasps and ants.

Note: Here it must be noted that different insects have different modes of reproduction. Mosquitoes and Butterflies follow a sexual mode of reproduction wherein the egg is fertilized by the sperm to give rise to the embryo. This embryo grows up to become an adult.