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 fern; gemma cell in Marchantia; meristem cell of monocot, ovum of a liverwort, and zygote of a fern.

Answer 1

• protonemal cells of a moss → haploid, developed from spores 
• primary endosperm nucleus of dicot → diploid, formed after fertilization
• leaf cell of a moss → haploid, develops from protonemal cells 
• prothallus cell of a ferm → haploid, bears male and female sex organs gametophyte
• gemma cells in Marchantia → diploid, asexual reproduction cells
• meristem cell of monocot → diploid, somatic cell
• ovum of a liverwort → hiploid, female egg
• Zygote of a fern → diploid formed after fertilization.