Explain self-incompatibility and its role in limiting inbreeding and maintaining genetic diversity.
Tę umiejętność sprawdzają 4 zadania wzorowane na arkuszach IB z lat 2025–2026.
Cell organization enables specialized reactions, and life cycles transmit inherited information. (a) Outline three structural differences between eukaryotic and prokaryotic cells. (b) Outline advantages of dividing a cell into compartments. (c) Explain sexual…
(i) Define pollination. (ii) Outline how flowering plants can promote cross-pollination.
In an apple variety, pollen sharing the relevant incompatibility specificity with the maternal plant is rejected. What is a reproductive benefit of this mechanism? A. It prevents all changes in allele frequency B. It ensures that every ovule is fertilised by…
Which arrangement most strongly requires pollen transfer between different plants? A. Male and female flowers occur on separate individuals B. Pollen lands on the stigma of its own flower C. Anthers and stigmas mature together in one flower D. A flower…
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