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Question
Name the part of gynoecium that determines the compatible nature of pollen.
Solution
Stigma
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RELATED QUESTIONS
'Formation of primary endosperm nucleus is called triple fusion'. Give reason
Read the following statement and answer the questions that follow :
"A guava fruit has 200 viable seeds."
(a) What are viable seeds?
(b) Write the total number of :
(i) Pollen grains (ii) Gametes
in producing 200 viable guava seeds.
c) Prepare a flow-chart to depict the post-pollination events leading to viable-seed production in a flowering plant.
What happens to the following after fertilization?
Calyx
What is ‘double fertilization’? Describe it with the help of a neat and well-labeled diagram. Give its importance.
What happens to the ovary post fertilization?
Do you think fruits are important for the plant?
The question has four options. Choose the correct answer:
One male gamete fuses with the egg and forms a diploid zygote. This process is called
The question has four options. Choose the correct answer:
When only ovary forms fruits they are known as
Even though each pollen grain has 2 male gametes, why at least 20 pollen grains are required to fertilize 20 ovules in a particular carpel?
Long Answer Question:
Draw a labeled diagram of the L.S. of anatropous ovule and list the components of the embryo sac and mention their fate after fertilization.
The correct order of haploid, diploid, and triploid structure in fertilized embryo sac is
Due to which of the following reasons the pollen tube usually grows down towards the egg?
Identify the function of filiform apparatus.
In a fertilised embryo sac, the haploid, diploid, and triploid structures are ______.
Double fertilization is characteristic of ______.
The female gametophyte of a typical dicot at the time of fertilisation is ______.
The total number of nuclei involved in double fertilisation in angiospersm are ______.
______ have the smallest seeds in the plant kingdom.
What is Siphonogamy?
Name the nuclei involved in triple fusion.
