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प्रश्न
State the number of sets of chromosomes present in a zygote.
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उत्तर
Zygote has 2 sets of chromosomes alternatively accept 2n.
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संबंधित प्रश्न
State the function of flowers in the flowering plants.
Draw a diagram of the longitudinal section of a flower exhibiting germination of pollen on stigma and label (i) ovary, (ii) male germ-cell, (iii) female germ-cell and (iv) ovule on it.
What is meant by pollination?
Answer the following question.
List two agents of pollination?
Find the odd one out:
__________ is present in unisexual flower.
Pollen tube reaches the embryo sac via style.
Which among the following statements are true for sexual reproduction in flowering plants?
- It requires two types of gametes
- Fertilisation is a compulsory event
- It always results in formation of zygote
- Offspring formed are clones
The figure below shows the concept of double fertilization. Complete the flow chart showing the progress at each step:
- Assertion: Primary endosperm nucleus is diploid.
- Reason: It is the product of double fertilisation.
