皮皮学，免费搜题
登录
搜题
【简答题】
RFLPs可用于跟踪特异染色体区域的遗传状况，在特定情况下，接近缺陷基因的RFLPs可用于确定缺陷基因是否存在于一个未出生的小孩身上。 一对夫妇找到你商讨遗传问题，他们的第二个孩子在出身后不久就死遗传疾病，并且这个母亲又怀孕了，这个患病儿是家系中发现的第二个患这种病的人，另一个是父亲的祖母的兄弟，这对夫妇想知道他们未出世的孩子有无这种遗传病。你已研究这种疾病的遗传学并且知道这种疾病是由一常染色体上隐性基因引起，疾病基因所在的染色体区域在某个群体中有几个限制性位点多态性(如图16-3-31A所示)，限制性位点多态性标记为+/-。 从这对夫妇身上、孩子的祖父母和未得病孩子身上抽取DNA样品并用限制图谱分析其特征(如图16-3-31B)。你现在开始给胎儿进行检查，那么什么样的限制图谱形式可以暗示胎儿有这种遗传疾病。
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】Employment practices often reflect the needs of employers several decades ago．Times have changed．And so too has the Canadian workforce．Yet many employment practices have not kept pace with this change...
【简答题】阅读理解。 Employment practices often reflect the needs of employers several decades ago. Times have changed. And so too has the Canadian workforce. Yet many employment practices have not kept pace with th...
【多选题】The employment of ethical business practices can enhance overall corporate health in （ ） area
A.
productivity
B.
finance
C.
stakeholder relations
D.
government regulation
【简答题】阅读理解。 Employment practices often reflect the needs of employers several decades ago. Times have changed. And so too has the Canadian workforce. Yet many employment practices have not kept pace with th...
【单选题】Which of the following would not represent an ethical objective in relation to employment practices?
A.
Guarantee of minimum wages
B.
Proactive health, safety and welfare promotion
C.
Promotion of workforce diversity
D.
Employability training
【单选题】The instabilities beneath current employment practices need to be removed.
A.
B.
C.
D.
【单选题】在全部投资均于建设起点一次投入，建设期为零，投产后每年净现金流量相等的条件下，计算内部收益率所求得的年金现值系数的数值应等于该项目的()。
A.
回收系数
B.
净现值率
C.
静态投资回收期
D.
投资利润率
【多选题】What are the most common ethical issues involve employment practices?
A.
poor working conditions
B.
child labor
C.
environmental pollution
D.
corruption
相关题目：
参考解析：
知识点：
题目纠错 0
发布
