MCQ
Photosystem-II occurs in.
- AStroma.
- BCytochrome.
- CGrana.
- DMitochondrial surface.
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$R$ : There always occurs two types of florets in a head.
$(a)$ 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.
$(1)$ Equisetum $(2)$ Chlamydomonas $(3)$ Sphagnum