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Draw a longitudinal section of the pisti...

Draw a longitudinal section of the pistil from a flowering plant, where pollination has occurred. Label the following: (a) Stigma showing germinating pollen grains (b) Style (c) Pollen tube reaching the micropyle of the ovule (d) Embryo sac (e) Components of the egg apparatus

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Draw a labelled diagram of the longitudinal section of a pistil showing pollen germination .

Draw a longitudianl section of a pistil of an angiosperm showing the growth of the pollen tube up to the micropyle of the ovule. Label (i) stigma, (ii) embryo sac, (iii) polle tube (iv) micropyle.

In the diagram given below, show the path of a pollen tube from the pllen on the stigma into the embryo sac, Name the components of egg apparatus.

Draw a longitudinal section of a post-pollinated pistil showing entry of pollen tube into a mature embryo-sac. Label filiform apparatus, chalazal end, hilum, antipodals male gametes and secondary nucleus .

Draw a longitudinal section of a post-pollinated pistil showing entry of Pollen, tube into a mature embryo-sac. Label filiform apparatus, chalazal end, Hilium, antipodals, male gametes and secondary nucleus.

(a) Draw a diagram of Pistil showing pollen tube growth in angiosperm and label (i) Stigma, (ii) male gametes , (iii) micropyle and (iv) Ovule. (b) Write the function of micropyle.

Can a plant flowering in Mumbai be pollinated by pollen grains of the same species growing in New Delhi ? Provide explanations has successfully occurred . Label the parts involved in reaching the male gametes to its desired destination.

XII BOARDS PREVIOUS YEAR-CUET MOCK TEST 2022-MULTIPLE CHOICE QUESTION
  1. Draw a longitudinal section of the pistil from a flowering plant, wher...

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  2. Male honey bees are produced by parthenogenesis. which type of cell di...

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  3. Identify the following sexually transmitted diseases that do not speci...

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  4. Choose the correct sequence of Process of transcription to process hnR...

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  5. Klinefelter syndrome has the genetic makeup

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  6. Statement I: Ethidium bromide-stained DNA can be seen under exposure t...

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  7. A color blind son born from normal parents, what could be the genotype...

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  8. Multiple allelism is the phenomenon wthen :-

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  9. Choose the correct sequence of replication of retrovrirus A. Viral D...

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  10. Which of the folloWing fruit is produced by parthenocarpy?

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  11. Statement I: Oral Contraceptive pills are a safeguard against AIDS and...

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  12. Choose the correct answer from the options given below:

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  13. EcoRI restriction enzymes can recognize this DNA sequence

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  14. Masses of bacteria associated with fungal filament to form mesh-like s...

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  15. Biomagnification of DDT in an aquatic food chain starting from water h...

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  16. Statement I: Protoplasts from cells of different species can be fused ...

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  17. Which of the following hormones is not secreted by human placenta?

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  18. Cuscuta is a creeper and an example of

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  19. what is the chemical nature and charge of Histone protein.

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  20. In Swiss cheese, big holes are made by a

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  21. Statement I: Drugs like LSD, barbiturates. amphetamines are used as me...

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