题目

I believe that with hard work and dedication (奉献) anything can be achieved. In life I had a _______ that taught me this exact belief.The symbol that reminds me of this hard work and dedication is my Lewandowski jersey (运动衫). This jersey has been an important _______ of my life for a long time. In college, I_______ it on many occasions to play soccer. The day I realized hard work and dedication could get a person to where he wanted to be, was just the _______ day I received my jersey. My family was on a vacation in Poland. One day, my dad_______ me to my first Polish International 在一个稳定遗传的白色实验小鼠种群中，偶然出现了一只金色雄性小鼠。研究人员将这只金色小鼠与多只白色雌鼠交配，得到F1全部为白色鼠。F1个体间随机交配得到F2，其中雌鼠全部表现为白色，雄鼠中白色鼠和金色鼠的比例是1:1。（1）组成金色基因的基本组成单位是 __________________。（2）由上述结果可以推测，突变性状为_____________性，由F2中个体表现型可知，控制金色的基因可能__________（多选）A.位于常染色体上 B.位于X染色体上，Y染色体上没有其等位基因C.位于XY的同源区段上 D.只位于Y染色体上（3）科研人员为进一步确定金色基因的位置，在排除了发生染色体变异的情况下，做了以下的方案，请予以完善。①从F1中选取白色雌鼠与金色雄性小鼠进行随机交配得到F2。②选取表现型为_______的母本与表现型为________的父本（不来自F1和F2）交配，依据子代的表现型确定金色基因的位置。结果预测与结论：①___________________________________________________。②___________________________________________________。