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प्रश्न
Explain the terms 'self pollination'
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उत्तर
In self pollination, pollens from the anther are transferred to the stigma of the same flower or another flower of the same plant.
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संबंधित प्रश्न
Name the parts A, B and C shown in the diagram and write their functions.
Draw a neat sketch of the carpel of a flower. Mark in it stigma, style and ovary.
Fill in the blanks:
A stamen consists of ______ and ________.
Find the odd-one out, giving reason:
Anther, pollen grain, ovule male gamete
Mention the function of Anther.
Write one main difference between asexual and sexual mode of reproduction. Which species is likely to have comparatively better chances of survival – the one reproducing asexually or the one reproducing sexually? Give reason to justify your answer.
Give one example each of unisexual and bisexual flowers. Differentiate between the two types of pollination that occur in flowers. What happens when a pollen lands on a suitable stigma? Write about the events that occur till the seed formation in the ovary.
Find the odd one out:
Find an odd one out.
Draw a neat and labelled diagram.
Double fertilization in angiosperms
Identify the parts A, B, C, and D?
Antipodal cells are present towards the ______ in an anatropous ovule.
Conidia are formed endogenously while zoospores are formed endogenously.
Pollen grains are produced by ______
Give reason for the following:
Fertilization cannot take place in flowers if pollination does not occur.
Draw the diagram of a flower and label the four whorls. Write the names of gamete producing organs in the flower.
Sexual maturation of reproductive tissues and organs are necessary link for reproduction. Elucidate.
Given below is a diagram of a germinating seed. Label the parts that:
- gives rise to future shoot.
- gives rise to future root system.
- stores food.
State the post-fertilisation changes that lead to fruit formation in plants.
