Class 12th Biology 2017 Set3 Delhi Board Paper Solution
Question 26
A capsicum flower has 240 ovules in its ovary. But it produces a fruit with only 180 viable seeds.
Explain giving a reason that could be respnsible for such a result
Answer
Ovules develop into viable seeds which are capable of germination under suitable environmental conditions. Viability is influenced by various conditions like humidity, temperature and availability of oxygen. Viability can be lost due to:
1 Exhausation of food around the embryo
2. damage to embryo
3. denaturation of enzymes
4 extremely high temperatures
5. excessively dry weather
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