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Question
Differentiate between self-pollination and cross-pollination.
Solution
Self-pollination: It is the transfer of pollen from the anther to the stigma in the same flower or pollen is transferred from the anther of one flower to the stigma of another flower on the same plant.
Cross-pollination: It is the transfer of pollen from an anther of a flower to the stigma of a flower on another plant.
RELATED QUESTIONS
A student was asked to observe and identify the various parts of an embryo of a red kidney bean seed. He identified the parts and listed them as under:
I. Tegmen
II. Testa
III. Cotyledon
IV. Radicle
V. Plumule
The correctly identified parts among these are
(A) I, II and III
(B) II, III and IV
(C) III, IV and V
(D) I, III, IV and V
The reproductive part of a plant is the ______.
Which of the following statements are true for flowers?
(i) Flowers are always bisexual.
(ii) They contain sexual reproductive organs.
(iii) They are produced in all groups of plants.
(iv) after fertilization they give rise to fruits.
Multiple choice question. Tick (✓) the correct choice:
The male gamete is present inside the which germinates.
- the style
- the stigma
- the anther
- the ovary
Mention the function of Flower.
Draw a diagram of a pistil showing pollen tube growth into the ovule and label the following:
Pollen grain, male gamete, female gamete, ovary.
Distinguish between self-pollination and cross-pollination.
Flowers showing ornithophily show few characteristic like ______.
Trace the path a male gamete takes to fertilise a female gamete after being released from the penis.
Triple fusion involves ______.
