1. Tardigrade
  2. Question
  3. Biology
  4. How many of the following statements about reproduction in flowering plants is not correct? a. As soon as meiosis begins, the plasmodesmata between PMC and tapetal cells are broken. b. Bird pollinated flowers are usually colorless and odorless. c. The ovules in the family Malvaceae are campylotropous. d. The tapetal cells may divide by endomitosis and polyteny. e. The wall surrounding the megaspore is generally cutinized. f. In pollination, a functional pollen grain carrying the male gametes reaches the embryosac of an ovule.

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Q. How many of the following statements about reproduction in flowering plants is not correct?
a. As soon as meiosis begins, the plasmodesmata between PMC and tapetal cells are broken.
b. Bird pollinated flowers are usually colorless and odorless.
c. The ovules in the family Malvaceae are campylotropous.
d. The tapetal cells may divide by endomitosis and polyteny.
e. The wall surrounding the megaspore is generally cutinized.
f. In pollination, a functional pollen grain carrying the male gametes reaches the embryosac of an ovule.

NTA AbhyasNTA Abhyas 2020

Solution:

a. As soon as meiosis begins, the plasmodesmata between PMC and tapetal cells are broken - True
b. Bird pollinated flowers are usually colorless and odorless - False. They have color.
c. The ovules in family Malvaceae are campylotropous - False. They are anatropous.
d. The tapetal cells may divide by endomitosis and polyteny - True
e. The wall surrounding the megaspore is generally cutinized - False. It is made up of callose.
f. In pollination, a functional pollen grain carrying the male gametes reaches the embryosac of an ovule. - False. Pollination is the transfer of pollen grains from style to stigma.