皮皮学，免费搜题
登录
logo - 刷刷题
搜题
【单选题】
大鼠的毛色由独立遗传的两对等位基因控制，用黄色大鼠与黑色大鼠进行杂交实验，结果如下图。据图判断，下列叙述正确的是( )【图片】
A.
黄色为显性性状，黑色为隐性性状
B.
F 1 与黄色亲本杂交，后代有两种表现型
C.
F 1 和 F 2 中灰色大鼠均为杂合体
D.
F 2 黑色大鼠与米色大鼠杂交，其后代中出现米色大鼠的概率为1/4
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案：
举一反三
【单选题】听力原文：M: Excuse me, I'd like to send a registration letter to Houston, Texas. How much is the postage? W: Let me check. It's a dollar and 55 cents. Q: What is the probable relationship between the two ...
A.
Shop assistant and customer.
B.
Post clerk and customer.
C.
Store keeper and customer.
D.
Waitress and customer.
查看完整题目与答案
【多选题】根据违反法的种类不同,违法行为可以分为()。
A.
刑事违法行为
B.
民事违法行为
C.
一般违法行为
D.
行政违法行为
查看完整题目与答案
【简答题】组蛋白是一类与染色体 DNA 结合的重要蛋白质,在这类蛋白质中 Arg 和 Lys 的百分含量很高( 15 ~ 30% )。试问测定组蛋白的序列是否容易?为什么?
查看完整题目与答案
【多选题】铁路集装箱按类型分为以下哪几种箱型()
A.
通用集装箱
B.
自备集装箱
C.
专用集装箱
D.
航空集装箱
查看完整题目与答案
【单选题】Speaker A: Excuse me. I'd like to exchange this watch. I just bought it, but look at this. Speaker B: ______
A.
Yes, I know your watch is new, but I like my old one better.
B.
What seems to be the problem?
C.
Thank you for your kindness, but my watch still works.
D.
Sorry. Why didn't you examine it carefully before you bought it?
查看完整题目与答案
【判断题】电子支付的广泛应用需要一些硬 件设备和软件等方面的技术支持
A.
正确
B.
错误
查看完整题目与答案
【单选题】听力原文：M: Excuse me. I'd like to place an advertisement for a used car in this Sunday's edition of your paper. W: OK, but you have to run your advertisement all week. We can't quote rates for just Sunda...
A.
At a newsstand.
B.
At a car dealer's.
C.
At a publishing house.
D.
At a shopping mall.
查看完整题目与答案
【简答题】2016年5月1日,某药品监督管理部门对辖区内的某一药品零售企业(连锁药店)进行检查,检查人员发现其货架上销售的药品有地西泮片10瓶,“港药”正红花油20盒。经查,该企业营业执照经营范围中有药品和医疗器械,药品经营许可证的经营范围为“中成药”、“中药饮片”、“化学制剂”、“抗生素制剂”,但未取得医疗器械经营许可证,所经营的地西泮片系从区域性药品批发企业业务员李某手中购入,一共购入10瓶,“港药”正...
查看完整题目与答案
【单选题】Proper lubrication of the main bearing is more easily obtained in a single acting four-stroke/cycle diesel engine than in a single acting two-stroke/cycle diesel engine because （）
A.
bearing pressure in a four-stroke/cycle acting single diesel engine is continually reversed
B.
bearing pressure in a two-stroke/cycle single acting diesel engine is continually reversed
C.
the maximum bearing pressure is higher in a single acting two-stroke/cycle diesel engine
D.
two-stoke/cycle diesel engines require more complicated lubrication piping
查看完整题目与答案
【简答题】Excuse me, I'd like to this dress. I bought it yesterday.
查看完整题目与答案
相关题目：
【单选题】听力原文：M: Excuse me, I'd like to send a registration letter to Houston, Texas. How much is the postage? W: Let me check. It's a dollar and 55 cents. Q: What is the probable relationship between the two ...
A.
Shop assistant and customer.
B.
Post clerk and customer.
C.
Store keeper and customer.
D.
Waitress and customer.
查看完整题目与答案
【多选题】根据违反法的种类不同,违法行为可以分为()。
A.
刑事违法行为
B.
民事违法行为
C.
一般违法行为
D.
行政违法行为
查看完整题目与答案
【简答题】组蛋白是一类与染色体 DNA 结合的重要蛋白质,在这类蛋白质中 Arg 和 Lys 的百分含量很高( 15 ~ 30% )。试问测定组蛋白的序列是否容易?为什么?
查看完整题目与答案
【多选题】铁路集装箱按类型分为以下哪几种箱型()
A.
通用集装箱
B.
自备集装箱
C.
专用集装箱
D.
航空集装箱
查看完整题目与答案
【单选题】Speaker A: Excuse me. I'd like to exchange this watch. I just bought it, but look at this. Speaker B: ______
A.
Yes, I know your watch is new, but I like my old one better.
B.
What seems to be the problem?
C.
Thank you for your kindness, but my watch still works.
D.
Sorry. Why didn't you examine it carefully before you bought it?
查看完整题目与答案
【判断题】电子支付的广泛应用需要一些硬 件设备和软件等方面的技术支持
A.
正确
B.
错误
查看完整题目与答案
【单选题】听力原文：M: Excuse me. I'd like to place an advertisement for a used car in this Sunday's edition of your paper. W: OK, but you have to run your advertisement all week. We can't quote rates for just Sunda...
A.
At a newsstand.
B.
At a car dealer's.
C.
At a publishing house.
D.
At a shopping mall.
查看完整题目与答案
【简答题】2016年5月1日,某药品监督管理部门对辖区内的某一药品零售企业(连锁药店)进行检查,检查人员发现其货架上销售的药品有地西泮片10瓶,“港药”正红花油20盒。经查,该企业营业执照经营范围中有药品和医疗器械,药品经营许可证的经营范围为“中成药”、“中药饮片”、“化学制剂”、“抗生素制剂”,但未取得医疗器械经营许可证,所经营的地西泮片系从区域性药品批发企业业务员李某手中购入,一共购入10瓶,“港药”正...
查看完整题目与答案
【单选题】Proper lubrication of the main bearing is more easily obtained in a single acting four-stroke/cycle diesel engine than in a single acting two-stroke/cycle diesel engine because （）
A.
bearing pressure in a four-stroke/cycle acting single diesel engine is continually reversed
B.
bearing pressure in a two-stroke/cycle single acting diesel engine is continually reversed
C.
the maximum bearing pressure is higher in a single acting two-stroke/cycle diesel engine
D.
two-stoke/cycle diesel engines require more complicated lubrication piping
查看完整题目与答案
【简答题】Excuse me, I'd like to this dress. I bought it yesterday.
查看完整题目与答案
参考解析：
知识点：
题目纠错 0
发布
创建自己的小题库 - 刷刷题