Prepare for NEET Biology Sexual Reproduction in Flowering Plants (Pre Fertilization Structure And Events) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert solutions to examine pollen development, stigma, and pollination.
NEET Questions / Botany / Sexual Reproduction in Flowering Plants / Pre Fertilization Structure And Events
In a particular angiosperm species, the synergids exhibit a unique filiform apparatus oriented away from the micropyle. What would be the MOST likely consequence of this unusual arrangement?
Enhanced pollen tube attraction
Faster pollen tube growth
Reduced fertilization success
Increased seed production
A mutation affects the tapetum in a developing anther, leading to premature degeneration of this tissue. What is the MOST likely direct consequence of this mutation?
Increased production of viable pollen grains.
Enhanced pollen germination rates.
Defective pollen wall formation and reduced pollen viability.
Accelerated development of the microspore mother cells.
Which of the following combinations of floral characteristics would MOST effectively promote cross-pollination?
Monoecy, self-compatibility, and homogamy
Dioecy, self-incompatibility, and protandry
Cleistogamy, self-compatibility, and protogyny
Hermaphroditism, self-compatibility, and synchronized pollen and stigma maturity
If insect populations declined significantly, what would be the most likely impact on the reproduction of water hyacinth and water lily?
Increased seed production
No change in seed production
Decreased seed production
Shift to self-pollination
Statement 1: Water hyacinth and water lily are primarily insect-pollinated.
Statement 2: These plants possess colorful and fragrant flowers.
Choose the correct option:
Both statements are true, and statement 2 is the correct explanation of statement 1.
Both statements are true, but statement 2 is not the correct explanation of statement 1.
Statement 1 is true, but statement 2 is false.
Statement 1 is false, but statement 2 is true.
