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Plant Kingdom — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYPlant Kingdom2 Marks
Question
How is triploid PEN (Primary Endosperm Nucleus) is formed? What is indicated by triploid condition of endosperm?
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Answer

The zygote is produced by the process of syngamy and the other male gamete fuses with the secondary nucleus to form the triploid Primary Endosperm Nucleus (PEN). In angiosperms, the astrological nature of the endosperm is triploid (3n). In the triploid condition, each nucleus has three sets of chromosomes.

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