Class 9/Practice Questions
Created by Titas Mallick
Biology Teacher • M.Sc. Botany • B.Ed. • CTET (CBSE) • CISCE Examiner
Created by Titas Mallick
Biology Teacher • M.Sc. Botany • B.Ed. • CTET (CBSE) • CISCE Examiner
Practice questions testing deep understanding of self and cross-pollination mechanisms.
Q1. A farmer notices that a specific variety of apple tree in his orchard produces flowers where the stigma matures and becomes receptive several days before the anthers in the very same flower mature and release pollen. What is the biological term for this phenomenon, and what is its ultimate evolutionary purpose?
Q2. Corn plants (maize) are monoecious, meaning male and female flowers are on the same plant, but they rely heavily on wind for pollination. Describe two physical adaptations in the pollen or the flower of a corn plant that make wind pollination successful.
Q3. Assertion (A): Cross-pollinated plants generally produce offspring that are stronger and more disease-resistant than self-pollinated plants. Reason (R): Cross-pollination mixes the genetic material of two different plants of the same species, introducing advantageous genetic variations.
/Class-9/Competency-Based-Questions/2_2_Pollination_CBQ.mdx