Name the protective layers found over the radicle and plumule, respectively.
Testa and tegmen
Tegmen and coleoptile
Coleorhiza and coleoptile
Coleoptile and Testa
The correct option is C Coleorhiza and coleoptile The coleoptile and coleorhiza are sheaths that enclose plumule and radicle of the monocot seed, respectively. This is a characteristic feature that is present in monocots.
Seeds have a seed coat with two layers - outer testa and inner tegmen. The testa is thick and the tegmen is thin and membranous. Both layers develop from the outer and the inner layers (integuments) of the ovule.