All the TYBSc. Zoology students, please click on the link below to go to the Question Bank-2 of Organic Evolution for practice purpose.
Parthenogenesis When development of organism takes place without fertilization, the process is called as parthenogenesis. Parthenogenesis is of two types viz. 1. Natural 2. Artificial Natural parthenogenesis: · Eggs that develop without fertilization naturally, the process is called as natural parthenogenesis. · It is commonly seen in Aphids, Phyllopods and Rotifers at sometimes of the years not always · Whereas in case of bees and wasps males are always produced from unfertilized egg. Thus, males are always haploid and females are diploid because females are produced from fertilized egg. · In some species such as Tenthredinidae, reproduction is alays parthenogenetically and males of this species are not known. ...
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