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Collar like outgrowth arising from the b...

Collar like outgrowth arising from the base of ovule and forming is a sort of third integument is known as
1. caruncle
2. aril
3. coma
4. operculum

A

caruncle

B

aril

C

coma

D

operculum

Text Solution

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The correct Answer is:
B
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TRUEMAN BIOLOGY-SEXUAL REPRODUCTION IN FLOWERING PLANTS-MULTIPLE CHOICE QUESTIONS
  1. Ovule is technically equivalent to 1. megasporangium with one megaspor...

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  2. Ovule is attached to the placenta by a stalk known as 1. funicle 2. ...

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  3. Collar like outgrowth arising from the base of ovule and forming is a ...

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  4. In tenuinucellate type of ovule

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  5. Crassinucellate ovule shows: 1. Developed nucellus 2. Partially dev...

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  6. When ovule is straight with funiculus, embryo sac, chalaza and microp...

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  7. Ovule is inverted (resupinates at 180^(@)) with body fused to funicle,...

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  8. Ovule of Opuntia is coiled and turn at more kthan 360^(@) angle, i...

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  9. Female gametophyte (megagametophyte of aniosperms) is represented b...

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  10. The female gametophyte (embryo sac) of a typical dicot (Polygonum) at...

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  11. Number of chromosomes is 24 in nucellus. Number of chromosomes in micr...

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  12. Base of nucellus from which integument arises is

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  13. The megasporangium of the angiosperms on maturation gives rise to

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  14. Megasporophyll of Pinus is equivalent to angiospermic

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  15. What do you think is the correct sequence of the development of the e...

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  16. Embryo sac develops from megaspore mother cell through

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  17. The plant part which consists of two generations one within the other ...

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  18. Function of guiding and attracting pollen tube towards egg is done by

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  19. In flowering plants archesporium gives rise to

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  20. The number of chromosomes in leaf tip cell of plant is 6. The number ...

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