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From the statements given below, choose ...

From the statements given below, choose the option that are true for a typical femal gametophyte of a flowering plant.
(i) It is 8-nucleate and 7-celled at maturity.
(ii) It is free-nuclear during the development.
(iii) It is situated inside the integument but outside the nucellus.
(iv) It has an egg apparatus situated at the chalazal end.

A

(i) and (iv)

B

(ii) and (iii)

C

(i) and (ii)

D

(ii) and (iv)

Text Solution

Verified by Experts

The correct Answer is:
C
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From the statement given below choose the option tht are true for a typical female gametophyte of a flowering plant : (i) It is 8- nucleate and 7-celled at maturity (ii) It is free nuclear during development (iii) It is situated inside the integument but outside the nucellus (iv) It has an egg apparatus situated at the chalazal end.

From the statements given below :- choose option that is true for a tropical female gametophyte of a flowering plant: i. It is -8 nucleate and 7-celled at maturity. ii. In majority of the angiosperms , its monosporic. iii. It is situated inside the integument but outside the nucellus. IV. It had an egg apparatus situated at the micropyle end . V. It develops by mitosis of the 4 cells of megaspore tetrad.

State true or false and correct each flase statement to make it true (i) The ploidy level of female gametophyte is diploid in flowering plants (ii) Integumented megasporangum is also called as ovary (iii) The embryo sac lies at chalazal end of ovule

Some of the statements are given below I. Porifera to Echinodermata lack a notochord. II. Platyhelminthes display tissue level organisation. III. Mesoglea is present in coelenterates during development. IV. Aschelminthes are coelomates. Choose the correct option for true statement.

Given below are a few statements related to external fertilisation. Choose the correct statements. (i) The male and female gametes are formed and released simultaneously. (ii) Only a few gametes are released into the medium. (iii) Water is the medium in a majority of organisms exhibiting external fertilisation. (iv) Offspring formed as a result of external fertilisation have better chance of survival than those formed inside an organism.

Which of the following statements are correct regarding the development of embryo sac ? (i) The type of nuclear division is free , in which there is no formation of the cell wall . (ii) Out of the eight nuclei , six are surrounded by a cell wall . (iii) Central cell situated below the egg apparatus.

Read the statements below regarding the nucleus of a cell. Identify them as true or false and select the correct combination option. I. The nucleus displays an elaborate nucleoprotein fiber called chromatin during the interphase of the cell cycle. II. The space between the parallel membranes of the nuclear envelope is called the nucleoplasm. III. Nucleus was discovered first by Flemming. IV. The nuclear pores within the nuclear envelope are formed by the fusion of both membranes. {:("No.",I,II,III,IV),(1,"True","True","False","False"),(2,"True","False","False","False"),(3,"True","True","False","False"),(4,"True","False","False","True"):}

Following statements are given regarding MTP. Choose the correct options given below. (i) MTPs are generally advised during first trimester (ii) MTPs are used as a advised during first trimester (iii) MTPs are always surgical (iv) MTPs require the assistance of qualified medical personnel.

MODERN PUBLICATION-SEXUAL REPRODUCTION IN FLOWERING PLANTS-NCERT (Exemplar Problems (MCQ))
  1. Among the terms listed below, those that are not technically correct n...

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  2. Embryo sac is to ovule asis to an anther.

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  3. In a typical complete, bisexual and hypogynous flower the arrangement ...

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  4. A dicotyledonous plant bears flowers but never produces fruits and see...

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  5. The outermost and innnermost wall layers of microsporangium in an anth...

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  6. During microsporgenesis, meiosis occurs in

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  7. From among the sets of terms given below, identify those that are asso...

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  8. Starting from the innermost part, the correct sequence of parts in an ...

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  9. From the statements given below, choose the option that are true for a...

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  10. Autogamy can occur in a chasmogamous flower if

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  11. Choose the correct statement from the following

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  12. A particular species of plant produces light, non-sticky pollen in lar...

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  13. From among the situations given below, choose the one that prevents bo...

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  14. In a fertilised embryo sac, the haploid, diploid and triploid structur...

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  15. In an embryo sac, the cells that degenerate after fertilisation are

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  16. While planning for an articifical hybridisation programmme involving d...

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  17. In the embryos of a typical dicot and a grass, true homologous structu...

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  18. The phenomenon observed in some plants wherein parts of the sexual ap...

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  19. In a flower, if the megaspore mother cell forms magaspores without und...

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  20. The phenomenon wherein, the ovary develops into a fruit without fertil...

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