Question
Differentiate between egg cells and secondary nucleus found in embryo sac of angiosperms.
✓
Answer
Differences between Egg cell and Secondary nucleus :
| S.No. | Egg Cell | Secondary Nucleus |
| 1 | It is situated closely to micropyle inembryo sac. | It is situated almost in the middle of embryo sac. |
| 2 | Egg cell is surrounded by synergids on either side. | It is not surrounded by any structure. |
| 3 | It has only one nucleus which has haploid no. of chromosomes. | It has two haploid nuclei which fuse together forming diploid secondary nucleus. |
| 4 | It fuses with male gamete to produce zygote (2n). | It fuses with male gamete to produce primary endosperm nucleus (3n). |
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