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Autogamy is possible in (A) only monoec...

Autogamy is possible in
(A) only monoecious flower
(B) only in bisexual flower
(C) both monoecious and bisexual flower
(D) none of these

A

only monoecious flower

B

only in bisexual flower

C

both monoecious and bisexual flower

D

none of these

Text Solution

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The correct Answer is:
B
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From among the situations given below, choose the one that prevents both autogamy and geitonogamy (A) Monoecious plant bearing unisexual flowers (B) Dioecious plant bearing only male or female flowers (C) Monoecious plant with bisexual flowers (D) Dioecious plant with bisexual flowers

If a flower has both androecium and gynoecium, it is a_____flower.

What is called a flower having both stamen and pistil ?

Which of the following option is correct for statement .X. and statement .Y.? Statement .X. : In autogamous flower, the stigma and anthers of a flower ripe almost simultaneously. Statement-.Y. : Autogamy is possible only in bisexual flower (A) Statement-.X. and statement-.Y. both are correct and statement-.Y. is the reason for statement-.X. (B) Statement-.X. and statement-.Y. are correct and statement -.Y. is not correct reason for statement-.X. (C) statement-.X. is correct and statement-.Y. is wrong (D) statement-.Y. is correct and statement-.X. is wrong

A dicotyledonous plant bears flowers but never produces fruits and seeds. The most probable cause for the above situation is (A) Plant is dioecious and bears only pistillate flowers (B) Plant is dioecious and bears both pistillate and staminate flower (C) Plant is monoecious (D) Plant is dioecious and bears only staminate flowers

if a flower either only has stamens or only carpels it is a _____flower.

What is a bisexual flower ? Collect five bisexual flowers from your neighbourhood and with the help of your teacher find out their common and scientific names.

External fertilization is seen in (A) bony fishes (B) frogs (C) Both (A) and (B) (D) none of the above

Autogamy means (A) pollination of a flower by its own pollen (B) pollination of a flower by different of same species (C) pollination of a flower by different pollen of different species (D) Pollen of a flower pollinate any other flower present on same plant

KUMAR PRAKASHAN-SEXUAL REPRODUCTION IN FLOWERING PLANTS-Section -F (Multiple Choice Questions)
  1. What is Parthenocarpy? (A) Development of egg without fertilization ...

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  2. Autogamy means (A) pollination of a flower by its own pollen (B) p...

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  3. Autogamy is possible in (A) only monoecious flower (B) only in bise...

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  4. Autogamy is observed in members of…. (A) apiaceae (B) lamiaceae (...

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  5. Which of the following option is correct for statement .X. and stateme...

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  6. Sporogenous tissue gets its nourishment from layer of anther wall, whi...

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  7. 250 microsporocytes will give rise to ……. Microspores (A) 250 (B) 5...

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  8. What is the function of tapetum in a developing anther? (A) To draw f...

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  9. The number of microsporangia present in the anther is …..

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  10. The male gametes of angiosperms are…. (A) uniflagellate (B) biflage...

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  11. Male gametophyte of angiosperm is…. (A) anther lobe (B) pollen befo...

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  12. Which among the following is applicable to tapetum? (A) Protective la...

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  13. The chemical nature of the compound forming exine is…. (A) long chai...

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  14. Outermost layer of the pollen is formed from endothecium and is made u...

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  15. The first cell of female gametophyte is (A) megaspore (B) microspor...

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  16. Tetrasporic embryosac is one in which (A) four microspores form the e...

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  17. In angiosperm the resultant of secondary nucleus with male gamete has…...

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  18. Pick up correct statement for pollen tube (A) It is composed of three...

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  19. If the integuments are pierced by the pollen tube during fertilization...

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  20. The oospore derived from double fertilization in angiosperms is (A) h...

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