我做的mice breeding, B6 x FVB ---> FVB/B6 hybrid gray mice in bred FVB/B6 hybrid gray mice in bred --> white, black and gray mice, about 1:1:2 老鼠毛色是单一基因吗? 谢谢
401 investment for dummies: 0. Do NOT try to beat the market 0.1 Do NOT timing 1. Stick to the stock/bond ratio based on your targeted retire year 2. Buy funds w/ least fee For do NOT timing, not buying know is one kind of timing. The best strategy IMHO: try to buy SPX500 index fund w/ 4% of your money every other week. You spread your investment evenly across a year.