MCQ
Synergids are
- ATetraploid
- BTriploid
- CDiploid
- ✓Haploid
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|
Column- $I$ |
Column- $II$ |
|
$A.$ $500$ million years ago |
$1.$ Sea weeds and few plants |
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$B.$ $350$ million years ago |
$2.$ Jawless fishes |
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$C.$ $320$ million years ago. |
$3.$ Inverbebrates |
$R$ : It is the occurrence of horizontal zonation in the ecosystem.
$I.$ Ethidium bromide
$II.$ Restriction endonuclease
$III.$ Agarose
$IV.$ $UV$ radiation
Choose the correct option: