NEET 2008 · Class 12

Sexual Reproduction in Flowering Plants

Unisexuality of flowers prevents

  1. (A)geitonogamy, but not xenogamy
  2. (B)autogamy and geitonogamy
  3. (C)autogamy, but not geitonogamy
  4. (D)both geitonogamy and xenogamy

The NCERT line that answers it

Verbatim line

If both male and female flowers are present on the same plant such as castor and maize (monoecious), it prevents autogamy but not geitonogamy.

Chapter
Sexual Reproduction in Flowering Plants
Section
1.2.3 Pollination
Page
14
Words matched
24 of 24

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states that monoecious plants (with both male and female flowers on the same plant) prevent autogamy but not geitonogamy, which directly matches option C.

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