MCQs
Q1. Double fertilisation involves:
A. Two eggs fertilised
B. Two male gametes fusing with egg
C. Syngamy and triple fusion
D. Only triple fusion
Q2. Syngamy results in formation of:
A. Endosperm
B. Zygote
C. Embryo sac
D. Ovule
Q3. Triple fusion involves fusion of:
A. One male gamete + egg
B. Two male gametes + egg
C. One male gamete + two polar nuclei
D. Two male gametes + two polar nuclei
Q4. Primary Endosperm Nucleus (PEN) is:
A. Haploid
B. Diploid
C. Triploid
D. Tetraploid
Q5. Double fertilisation is unique to:
A. Gymnosperms
B. Algae
C. Angiosperms
D. Bryophytes
Q6. Primary endosperm cell (PEC) develops into:
A. Embryo
B. Fruit
C. Endosperm
D. Ovule
Q7. Endosperm development occurs:
A. After embryo formation
B. Before embryo development
C. Simultaneously always
D. After seed maturation
Q8. Free nuclear endosperm is characterised by:
A. Cell wall formation
B. Absence of nuclei
C. Multiple nuclei without cell walls
D. Only one nucleus
Q9. Coconut water represents:
A. Cellular endosperm
B. Free nuclear endosperm
C. Embryo
D. Zygote
Q10. Which of the following has persistent endosperm?
A. Pea
B. Groundnut
C. Castor
D. Bean
Q11. Zygote divides only after:
A. Pollination
B. Fertilisation
C. Some endosperm formation
D. Fruit formation
Q12. Embryo develops at:
A. Chalazal end
B. Micropylar end
C. Central cell
D. Ovary wall
Q13. In monocot embryo, cotyledon is called:
A. Coleoptile
B. Coleorrhiza
C. Scutellum
D. Plumule
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