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

Spindle apparatus is formed during which stage of mitosis?

A
Prophase
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
Metaphase
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Anaphase
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Telophase
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A Prophase
The mitotic cell division is carried out in various stages. Coiling of chromatin material into distinct chromosomes is the most important event of prophase. Formation of spindle apparatus occurs during prometaphase stage. The spindle fibers attach to the centromere.
The nuclear membrane breaks apart into numerous "membrane vesicles", and the chromosomes inside form protein structures called kinetochores. Kinetochore microtubules emerging from the centrosomes at the poles (ends) of the spindle reach the chromosomes and attach to the kinetochores, throwing the chromosomes into agitated motion. Other spindle microtubules make contact with microtubules coming from the opposite pole.
So, the correct answer is option B.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Cell Division
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon