MCQ
Seedless grapes are produced due to
- ✓Parthenocarpy
- BCrossing over
- CParthenogenesis
- DNone of these
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$(I)$ Vertebrate hearts.
$(II)$ Vertebrate brains
$(III)$ Thorn and tendrils of Bougainvillea andcucurbita respectively
$(IV)$ Vertebrate limbs.
The correct combination is

$A$ - number of chromosomes in endosperm
$B$ - number of chromosomes in egg cell
$C$ - number of chromosomes in polar nuclei