已知A与a、B与b、C与c 3对等位基因自由组合,基因型分别为AaBbCc、AabbCc的两个体进行杂交.下列关于杂交后代的推测,正确的是( )
A:表现型有8种,AaBbCc个体的比例为116
B:表现型有4种,aaBbcc个体的比例为116
C:表现型有8种,Aabbcc个体的比例为18
D:表现型有8种,aaBbCc个体的比例为116
Where is the school?
① ____ A. Sunday B. weekend C. Monday D. Tuesday
② ____ A. older B. teacher C. funnier D. thinner
③ ____ A. visited B. watched C. cooked D. excited
④ ____ A. nose B. leg C. head D. toothache
⑤____ A. twelve B. fifth C. third D. first
太阳、月亮、烛焰,其中是光源的 ( )