b)
i) 30min/aftter every 30min; Rej if no units
ii) 20.4 -20.8mm;
iii)105min-106min; Rej after 105/106 min.
iv) 0 + 120minutes
iv)growth fast/growth rapid /rate of growth rapid/growth rate pattern rapid;
Rej. Exponential growth
reason: pollen tube young/has enough nutrients in culture;
to 180 minutes- grows slowly /rate of growth decline /decrease/growth rate pattern
decrease;
reason: pollen tube mature/old/has exhausted nutrients;
v) directs role gametes/nuclei/nucleus to ovules; Rej. Ovary/pollen grains for male gametes.
c) integument develop/changes to-seed coat/testa;
zygote-embryo;
triploid nucleus-endosperm;
ovary wall- pericarp;
ovary- fruits;
ovules-seeds;
corolla/petals/style/stamens/filament-dry out /fall off /wither(losing a scar);
calyx may persist(dry up &fall off)
marto answered the question on October 7, 2019 at 08:50
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