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Read the lines, find the error and rewri...

Read the lines, find the error and rewrite it.
One of the two sperms fuses with the egg to form a zygote. By the time the egg cell gas been fertilized, the two polar nuclei to form a single endo sperm nucleus.

A

Central cell

B

Anitpodal cell

C

Egg cell

D

Synergid cell

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The Pollen grain has 2 Nuclei. Whenever the pollen tube enters the Embryo soon after the tip of the pollen tube enters the embryo sec, the end of the tube ruptures and releases the two sperms into the embryo sac. One of the two sperms fuses with the egg to form 'X' and another sperm fuses with polar nuclei and form Y. What are X and Y in the above para?

Read the following lines, find the error and rewrite it. Pollen grain may have a pollen tube and one nucleus. It germinates only on the style.

During fertilization the ____ of the sperm and the ovum fuse to form a single nucleus.

Read the following lines, find the error and rewrite it. Zygote is in '3n' condition and endosperm nucleus is in '2n' condition.

Read the following lines, find the error and rewrite it. Majority of flowering plants have an embryosac consisting of eight cells and nine nuclei.

Complete the blanks. Union of one male nucleus with the egg cell, forms ……….. (1) and the second male nucleus with the fusion nucleus forms ………… (2)

Which two of the following statements are incorrect regarding in vitro fertilization? i) In this method, ova from the wife/donor female and sperms from the husband/donor male are induced to form zygote in the uterus ii) If the embryo is having 2 blastomeres, it is transferred into the uterus iii) If the embryo is with more than 8 blastomeres, it is transferred into the uterus iv) The baby thus produced is called test tube baby

NCERT TELUGU-REPRODUCTION-MEDICINE ORIENTED MATERIAL
  1. Read the given paragraph and answer the questions given below. In case...

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  2. The phenomenon of pollen tube entering the ovule laterally through int...

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  3. Read the lines, find the error and rewrite it. One of the two sperm...

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  4. Which one of the following produces both enzymes and hormones?

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  5. Compound pollens held together in small units called-

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  6. Name the component cells of the "egg apparatus" in an embryo sac.

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  7. The fibrous thickenings of endothecium are in the form of -

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  8. The phenomenon of polyphony is associated with layer of the anther-

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  9. which one of the following seeds does not have endosperm? Maize Rice ...

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  10. Wind pollinated flowers are

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  11. Endosperm of angiosperms is different from that of gymnosperms because

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  12. Filiform apparatus is a characteristic feature of

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  13. Caruncle is formed by-

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  14. Nursing tissue of ovule is-

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  15. What happens during fertilization in human after many sperms reach clo...

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  16. Acrosome of sperm is derived from

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  17. The 'clitoris' is located in urethral opening at the

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  18. Graffian follicles are present in

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  19. In the figure of mammalian spermatozoan, identify the different parts ...

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  20. In telolecithal eggs, yolk is present-

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