Crossing over is..........

  • A
    The exchange of genetic material between two homologous chromosomes.
  • B
    The exchange of genetic material between non-homologous chromosomes.
  • C
    Chromosomes are moved to the spindle equator.
  • D
    The process in which $DNA$ replication occurs two times.

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Similar Questions

Match the stages of meiosis in Column-$I$ to their characteristic features in Column-$II$ and select the correct option using the codes given below.
Column-$I$Column-$II$
$(A)$ Pachytene$(i)$ Pairing of homologous chromosomes
$(B)$ Metaphase-$I$$(ii)$ Terminalisation of chiasmata
$(C)$ Diakinesis$(iii)$ Crossing-over takes place
$(D)$ Zygotene$(iv)$ Chromosomes align at equatorial plate

Crossing over takes place between which chromatids and in which stage of the cell cycle?

The given figure is the representation of a certain event at a particular stage of a type of cell division. Which is this stage?

If $n=16$ in a plant cell,then how many chromosomes are present in each cell in metaphase-$I$ of meiosis?

What is the site of crossing over between two chromatids within homologous chromosomes called?

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