MCQ
Identify structure of amino acid.
- AProline
- BAspartic acid
- CAlanine
- ✓Serine
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$I.$ In gymnosperms, the male and female gametophytes have an independent existence.
$II.$ The multicellular female gametophyte is retained within the megasporangium.
$III.$ The gymnosperms are heterosporous.
Of these statements
$R$ : It is native configuration of protein molecules maintained by multiple covalent bonds only.