MCQ
This is the only type of pollination which during pollination brings genetically different types of pollen grains of the stigma.
- AGeitonogamy
- ✓Xenogamy
- C$A$ and $B$ both
- DAutogamy
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$I$. They inhibit ovulation and implantation
$II$. They alter the quality of cervical mucous to prevent or retard the entry of sperms
$III$. They prevent the ejaculated semen from entering the female vagina
$IV$. They inhibit spermatogenesis