Biology · Cell Structure and Function
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The kinetochore fibres contract and spindle or pole fibres elongate during:
- A
Prophase I
- B
Metaphase I
- C
Telophase I
- D
Anaphase I
[A] During prophase no separation of chromosomes occurs instead they only condense and thicken during prophase
[B] During Metaphase the cell’s chromosomes align in the centre(equatorial line) of dividing cell
[C] During telophase spindle disappears and nucleus reforms around each of the membrane
[D] Kinetochore is a protein attached with centromere,holding two chromatids together. Spindle fibres are connected to kinetochore, spindle fibres contacts causing kinetochore to contact.It is during Anaphase when each pair of chromosomes is separated into two identical chromosomes.
During prophase no separation of chromosomes occurs instead they only condense and thicken during prophase
During Metaphase the cell’s chromosomes align in the centre(equatorial line) of dividing cell
During telophase spindle disappears and nucleus reforms around each of the membrane
Kinetochore is a protein attached with centromere,holding two chromatids together. Spindle fibres are connected to kinetochore, spindle fibres contacts causing kinetochore to contact.It is during Anaphase when each pair of chromosomes is separated into two identical chromosomes
Tagged under Biology · Cell Structure and Function · 2010