Mendelism |
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Andalusian anthers appear bearing the walnut behaves blue Andalu Blue X Blue bred breed true Brünn cells coloured compound allelomorphs crossed Darwin differentiating characters dominant and recessive dwarf character equal chance equal numbers exhibits experiments F₁ F₂ fertilised flower stalks fluctuating variations form a zygote gametes bearing Gametes formed gametic segregation heredity hermaphrodite heterozygote heterozygous walnut homozygotes hybrids impure dominants inbreeding individual keel mating Mendel Mendel's discovery mutation natural selection normal numbers of gametes occurs offspring origin of species ovules pairs of differentiating parent phenomenon of dominance picotees Pisum sativum pollen tube Primula proportion pure dominants pure strain purple pyramidalis recessive character result rose or pea self-fertilisation shew shewn sian fowl simple allelomorphs snapdragon spermatozoon striped sweet pea tall and dwarf tall pea tall plants tiating characters tion types of comb union of walnut unit characters varieties Vries walnut character walnut comb walnut with single walnut-bearing whilst wrps zygote formed