题目内容
(请给出正确答案)
[单选题]
Alu 家族(Alu family)是短分散元件典型的例子,是人类基因组含量最丰富的中度重复顺序,占基因组总DNA含量的3%~6% ,长达(),在一个基因组中重复 30 万~ 50 万次。
A.170bp
B.130bp
C.300bp
D.500bp
E.400bp
答案
查看答案
A.170bp
B.130bp
C.300bp
D.500bp
E.400bp
第6题
A.马克思的一家人对林肯是非常敬爱的。
B.在马克思家族中,林肯得到很多爱和尊敬。
第7题
A.错误
B.正确
第8题
How is a blended family formed?
A.A blended family is formed by two single-parent families.
B.A blended family is formed by a nuclear family and a grandparent.
C.A blended family is formed by a nuclear family and grandparents.
D.A blended family is formed by two fatherless families.
第10题
A.错误
B.正确
第11题
James' family led a______life when she was born.
A.miserable
B.happy
C.well-off
D.hardly