Chapter 3

NCERT
Class 11
Biology
Solutions
 Mention the ploidy of the following: protonemal cell of a moss; primary endosperm nucleus in dicot, leaf cell of a moss_?

Question:

Mention the ploidy of the following: protonemal cell of a moss; primary endosperm nucleus in dicot, leaf cell of a moss; prothallus cell of a ferm; gemma cell in Marchantia; meristem cell of monocot, ovum of a liverwort, and zygote of a fern.

Answer:

1. Protonemal cell of a moss – haploid (n).
2. Primary endosperm nucleus in dicot –
triploid (3n).
3. Leaf cell of a moss –
haploid (n).
4. Prothallus cell of a ferm –
haploid (n).
5. Gemma cell in Marchantia – haploid (n).
6. Meristem cell of monocot –
diploid (2n).
7. Ovum of a liverwort – haploid (n).
8. Zygote of a fern –
diploid (2n).

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