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Question
Which of the following parts of a plant take part in sexual reproduction?
(i) Flower
(ii) Seed
(iii) Fruit
(iv) Branch
Choose the correct answer from below.
Options
(i) and (ii)
(i), (ii) and (iii)
(iii) and (iv)
(ii), (iii) and (iv)
Solution
(i), (ii) and (iii)
Explanation:
Sexual reproduction is the process of the development of new organisms through the formation and fusion of gametes. The organs specialised to perform sexual reproduction in flowering plants are flowers. After fertilisation ovary changes into fruit and ovules change into seeds. Seeds produce new plants.
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(I) | (II) | (III) | (IV) | (V) |
The most obvious outcome of the reproduction process is the generation of individuals of similar design, but in sexual reproduction they may not be exactly alike. The resemblances as well as differences are marked. The rules of heredity determine the process by which traits and characteristics are reliably inherited. Many experiments have been done to study the rules of inheritance. |
- Why an offspring of human being is not a true copy of his parents in sexual reproduction?
- While performing experiments on inheritance in plants, what is the difference between F1 and F2 generation?
- (A) Why do we say that variations are useful for the survival of a species over time?
OR
(B) Study Mendel's cross between two plants with a pair of contrasting characters.
RRYY × rryy Round Yellow Wrinkled Green He observed 4 types of combinations in F2 generation. Which of these were new combinations? Why do new features which are not present in the parents, appear in F2 generation?