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प्रश्न
- Assertion: Primary endosperm nucleus is diploid.
- Reason: It is the product of double fertilisation.
विकल्प
Both A and R are true and R is the correct explanation of A.
Both A and R are true and R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
उत्तर
A is false but R is true.
Explanation:
Triploid is the predominant endosperm nucleus. The haploid male gamete fuses with the diploid secondary nucleus or two haploid polar nuclei to produce it. It is the result of double fertilisation.
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संबंधित प्रश्न
Name the parts A, B and C shown in the following diagram and state one function of each.
How is the process of pollination different from fertilization?
Where are the pollen grains produced?
Fill in the following blank with suitable word :
Pollen grains contain ............ gametes of a plant.
Draw a diagram of the longitudinal section of a flower and label the following parts.
Calyx : Sepals : : Corolla : ________________
Bisexual : Hibiscus : : Unisexual : ___________
Distinguish between self-pollination and cross-pollination.
Conidia are formed endogenously while zoospores are formed endogenously.
What is the function of calyx?
