wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

What happens in diakinesis of prophase I?


Open in App
Solution

Prophase of Mitosis:

  1. During prophase, chromosomes condense into the X-shaped structures.
  2. Each chromosome comprises two sister chromatids that have identical information.
  3. Chromosomes pair up so that both the copies of chromosome 1 are together and both copies of chromosome 2 are grouped and so on.
  4. The membrane surrounding the nucleus at the end of the prophase dissolves away which releases chromosomes.
  5. The mitotic spindle expands across cells between centrioles as they drift to opposite poles of the cell.

Diakinesis:

  1. Diakinesis is the stage of Prophase I that marks the disappearance of the nuclear envelope around the cell.
  2. At this stage, the nucleolus, the nuclear membrane of the cell starts to disappear, and the appearance of fully compact homologous chromosomes is seen.
  3. It is characterized by the terminalisation of chiasmata and represents the transition to the next phase of the cell cycle.

flag
Suggest Corrections
thumbs-up
10
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Mitosis
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon