Parthenogenesis occurs during which of the following processes?

  • A
    When an embryo is formed without the fusion of egg and sperm.
  • B
    When an embryo is formed by the fusion of egg and sperm.
  • C
    When an embryo is formed from other cells.
  • D
    When sperm directly produces an embryo.

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Similar Questions

Which of the following can be expected if scientists succeed in introducing an apomictic gene into hybrid varieties of crops?

In $Taraxacum$,the unreduced embryo sac is derived from . . . . . . .

In which species has adventive polyembryony been reported?

$A$: Polyploids with an odd number of chromosomes are propagated vegetatively.
$R$: Seed formation is absent due to meiotic abnormality.

When a vegetative cell of the zygote forms an embryo,it is called:

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