Write 'True' or 'False
After pollination, pollen grains reach stem tip for fertilization.

Write 'True' or 'False'. Lysigenous cavity is present in monocot stem.

Write 'True' or 'False' In ferns there is self fertilization.

Write a short note on the structure of a pollen grain.

Write a short note on pollen grain in an angiospermic plant.

ASSERTION TYPE QUESTIONS : These questions consist of two statements each, printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses. A. If both Assertion and Reason are true and Reason is correct explanation of Assertion B. If both Assertion and Reason are true but Reasou is not correct explanation of Assertion. C. If Assertion is true but Reason is false. D. If both Assertion and Reason are false. . Assertion : Stigma of pistil receives the pollen during pollination. Reason: Pollen grains are produced in ovary of gynoecium.

Write " True" or "False" Oval and eccentric starch grains found in maize.

ADDITIONAL QUESTIONS : The diagram below shows a germinating pollen grain and a mature ovule from an insect-pollinated flower. Some parts have been labelled. Give the letter of the nucleus which fuses with a male nucleus to form each of the following : (i) The zygote (ii) The endosperm

MULTIPLE CHOICE QUESTIONS (MCQs): The type of pollination in which genetically different pollen grains are brought to stigma is :

True and False Type Questions Inner wall of the pollen grain is composed of celliulose and pectin.