MCQ
In which of the below cisternae is found?
- AOnly in mitochodria
- BOnly in $ER$
- ✓In $ER$ and golgibody
- DOnly in golgibody
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$(a)$ Complete disintegration of the nuclear envelope marks the start of the second phase of mitosis.
$(b)$ Metaphase chromosome is made up of one sister chromatid.