A gymnospermic leaf carries 16 chromosomes. The number of chromosomes in its endosperm will be (a) 12 (b) 8 (c) 16 (d) 24.
Option B Gymnosperms show distinct alternation of generations. The sporophytic phase is dominant. The sporphyte is differentiated into root, stem and leaves. So the number of chromosomes in a leaf cell is diploid (2n), (2n = 16). Double fertilization is absent in gymnosperms. The endosperm develops before fertilization directly from the megaspore. So the number of chromosomes in endosperm will be 8(n = 8).
