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西瓜无籽,怎样进行繁殖呢?回答这个问题要先从四倍体谈起。无籽西瓜是把四倍体西瓜和二倍体西瓜杂交,生产出三倍体杂交种子,种下这个种子就可长出无籽西瓜。 1.四倍体西瓜组成生物体的细胞是由细胞壁、细胞质、细胞核等组成的。细胞核中的染色质在遗传上起主导怍用。细胞进行分裂时,染色质变成棍棒状的染色体。染色体的数目是由一定基数的倍数所构成。
Watermelon seedless, how to reproduce? To answer this question from the tetraploid talk. Seedless watermelon is the tetraploid watermelon and diploid watermelon hybrid to produce triploid hybrid seed, planted this seed can grow seedless watermelon. 1. Tetraploid watermelon cells composed of organisms by the cell wall, cytoplasm, nuclei and other components. Chromatin in the nucleus is genetically dominant. When cells divide, the chromatin becomes a stick-shaped chromosome. The number of chromosomes is composed of a multiple of a certain base.