MCQ
Ovule integument gets transformed into
- ASeed
- BFruit wall
- ✓Seed coat
- DCotyledons
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$R$- Embryo is formed from zygote.
$I.$ Human insulin is made-up of $51$ amino acidsarranged in two polyperptide chains.
$II.$ The two polypeptide chains are interconnected by two disulphide bridges.
$III.$ In mammals including humans, insulin is synthesised as a pro-hormone, which contains an extra stretch called the $C$ -peptide.
$IV.$ $C$ -peptide is not present in the mature insulin
Which of the statements given above are correct?