MCQ
$DNA$ is present in
- ACarboxysomes
- BRibosomes
- CLysosomes
- ✓Mitochondria and chloroplast
(d) $DNA$ of chloroplast and mitochondria (eukaryotic cells) are called as extra-nuclear genetic material.
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$R$ : Bats and whales show echolocation and four chambered heart.
$R :$ Descending limb is impermeable to $Na^+$, while ascending limb is impermeable to $H_2O.$
$I.$ Terminalization $II.$ Crossing over
$III.$ Synapsis $IV.$ Disjunction of genomes
The correct sequence is