Identical twins are produced when

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(A) Identical twins (monozygotic twins) are formed when a single fertilized egg (zygote) undergoes early cleavage and the resulting blastomeres separa

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One fertilized egg divides into $2$ blastomeres and both separate

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(A) Identical twins (monozygotic twins) are formed when a single fertilized egg (zygote) undergoes early cleavage and the resulting blastomeres separate into two independent embryos.Since they originate from the same zygote,they share the same genotype and phenotype and are always of the same sex.

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