Plant genetic material in 'Gene-Bank' is preserved at - 196° C in liquid nitrogen as (1) seedling and rneristern (2) mature seed (dry) (3) pre-mature seed (high moisture) (4) ripe fruit
(2) mature seed (dry) Explanation: Plant genetic material in 'GENE BANK' is preserved at -196° Celsius in Liquid Nitrogen as mature seed (dry). In plants, it is possible to unfreeze the material and propagate it.