Part of REP-01 — Sexual Reproduction in Flowering Plants

Error Analysis — Common NEET Traps in REP-01

by Notetube Official275 words6 views

Top 10 NEET Traps in Sexual Reproduction in Flowering Plants

#TrapCommon Wrong AnswerCorrect Answer
1Endosperm ploidyDiploid (2n) — confusing with zygoteTRIPLOID (3n) — triple fusion
2Geitonogamy introduces variation"Yes — it's cross-pollination"NO — genetically self-pollination
3Embryo sac has 8 cells"8 cells"7 CELLS, 8 NUCLEI (central cell = 1 cell, 2 polar nuclei)
4Sporopollenin is in intine"Sporopollenin in intine"EXINE contains sporopollenin
5Cleistogamy is outbreeding"Cleistogamy promotes crossing"Cleistogamy = obligate SELF-pollination (inbreeding)
6Double fertilization needs 2 pollen"Two pollen grains required"ONE pollen grain (1 generative cell → 2 sperm)
7Antipodals guide pollen tube"Antipodals have filiform apparatus"SYNERGIDS have filiform apparatus
8Seed coat is triploid"Seed coat is 3n"Seed coat (from integuments) is DIPLOID (2n) — maternal tissue
9Fruit develops from ovule"Ovule → Fruit"Ovule → SEED; OVARY → Fruit
10Apomixis = seedless fruit"Apomixis = no seed"Apomixis = seeds WITHOUT fertilization; Parthenocarpy = SEEDLESS fruit

Additional Traps

  • Triple fusion produces PEN (not "secondary endosperm nucleus")
  • Germ pores are regions where exine is ABSENT (not where intine is absent)
  • Autogamy in cleistogamous flowers does NOT require any pollination agent
  • Polar nuclei are haploid (n each) BEFORE triple fusion, not diploid

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