Question 15
Length of pollen tube depends on the distance between

(a) pollen grain and upper surface of stigma
(b) pollen grain on upper surface of stigma and ovule
(c) pollen grain in anther and upper surface of stigma
(d) upper surface of stigma and lower part of style

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Solution

(b) pollen grain on upper surface of stigma and ovule

Length of pollen tube depends on the distance between pollen grain on the upper surface of stigma and ovule.

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Question 15
Length of pollen tube depends on the distance between

(a) pollen grain and upper surface of stigma
(b) pollen grain on upper surface of stigma and ovule
(c) pollen grain in anther and upper surface of stigma
(d) upper surface of stigma and lower part of style

The length of the pollen tube depends on the distance between :
(a) pollen grain and the upper surface of the stigma
(b) pollen grain on the upper surface of stigma and ovule
(c) pollen grain in anther and the upper surface of the stigma
(d) the upper surface of stigma and lower part of the style

Q. Pollen grains are produced in
(a) stigma
(b) filament
(c) anther
(d) style

The mechanism which brings pollen grains on to the surface of stigma is pollination.

Pollination refers to the
(a)transfer of pollen from the anther to the ovary
(b)transfer of male gametes from the anther to the stigma
(c)transfer of pollen grains from anther to stigma
(d)transfer of pollen from anther to ovule

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Parts of the Flower

Standard VI Biology

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Question 15 Length of pollen tube depends on the distance between (a) pollen grain and upper surface of stigma (b) pollen grain on upper surface of stigma and ovule (c) pollen grain in anther and upper surface of stigma (d) upper surface of stigma and lower part of style

(b) pollen grain on upper surface of stigma and ovule Length of pollen tube depends on the distance between pollen grain on the upper surface of stigma and ovule.

Question 15
Length of pollen tube depends on the distance between

(a) pollen grain and upper surface of stigma
(b) pollen grain on upper surface of stigma and ovule
(c) pollen grain in anther and upper surface of stigma
(d) upper surface of stigma and lower part of style

(b) pollen grain on upper surface of stigma and ovule

Length of pollen tube depends on the distance between pollen grain on the upper surface of stigma and ovule.