连锁遗传规律一、什么叫连锁遗传我们知道。每种生物都有固定的染色体数目,如:普通小麦2n=42,玉米2n=20,水稻2n=24等。但它们的基因却数以千计,如玉米的丰产性就可能受40个以上基因的控制,其它如植株的高矮、品质、芒的有无及长短,子粒的大小及颜色、千粒重等等,无一不 Genetic rules of a chain, what is the genetic linkage we know. Each organism has a fixed number of chromosomes, such as: 2n = 42 general wheat, corn 2n = 20, rice 2n = 24 and so on. But their genes are thousands of, such as the high yield of corn may be controlled by more than 40 genes, such as the height of the plants, quality, presence and length of the males, the size and color of the maize, the thousand-kernel weight, etc., None of them