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Biology
Sexual reproduction in plants
An element required for pollen germination is
A. Molybdenum
B. Potassium
C. Boron
D. Iron
Biology
Sexual reproduction in plants
Microspore mother cell forms
a) Microsporangium
b) Pollen sac
c) Female Gametophyte
d) Pollen grains
Biology
Sexual reproduction in plants
What is porogamy? Explain.
Biology
Sexual reproduction in plants
Mention the characters possessed by flowers responsible for insect pollination.
Biology
Sexual reproduction in plants
Define the term double fertilization in plants. After fertilization name the part in case which develops into (i) the fruit (ii) the seed.
Biology
Sexual reproduction in plants
Distinguish between pollination and fertilisation. Mention the site and product of fertilisation in a flower. Draw a neat labelled diagram of a pistil showing pollen tube growth and its entry into the ovule.
Biology
Sexual reproduction in plants
What happens to the part marked ā€˜Dā€™ after the fertilization?
Biology
Sexual reproduction in plants
What is the Polyadelphous condition?
Biology
Sexual reproduction in plants
What does the pollen tube carry?
Biology
Sexual reproduction in plants
What types of structures are formed at the end of micro and megasporogenesis?
Biology
Sexual reproduction in plants
Assertion: Megaspore mother cell undergoes meiosis to produce four megaspores.
Reason: Megaspore mother cells and megaspores both are haploid.
(a) Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
(b) Both Assertion and Reason are correct and Reason is not the correct explanation for Assertion.
(c) Assertion is correct but Reason is incorrect.
(d) Both Assertion and Reason are incorrect.
Biology
Sexual reproduction in plants
Observe the diagram given below and identify what happens after the above stage?

A. The ovary splits open.
B. The ovary develops into a fruit and ovules into seed
C. The ovules are dispersed
D. Germination of seeds takes place
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