Q. Both autogamy and geitonogamy are prevented in : Papaya Cucumber Castor Maize Solution : Correct option : APapaya is dioecious, i.e., male and female flowers occur in the separate…
Q. An organic substance which can withstand environmental extremes and which cannot be degraded by any enzyme is : (a)Cuticle (b) Sporopollenin (c) Lignin (d) Cellulose Solution : Correct option…
Q. In a flowering plant the pollen tube first arrives in : (a) Egg (b) An antipodal cell (c) A Synergid (d) Central cell Solution : Correct option: C Synergids…
Q. The nectar is produced in the flowers which are pollinated by : Wind Water Man Insects Solution : Correct option :D Many flowers produce nectar. When an insect lands…