A.mARN và prôtêin.
B.mARN.
C.ADN.
D.prôtein.

A.AABb.
B.aabb.
C.AaBb.
D.AaBB.

A.0,2.
B.0,8.
C.0,7.
D.0,6.

A.people all know that education is very important all the time
B.all parents are rich enough to send their children to school
C.children have rights to get high schooling
D.children have to work instead of going to school

A.people all know that education is very important all the time
B.all parents are rich enough to send their children to school
C.children have rights to get high schooling
D.children have to work instead of going to school

A.as
B.much  
C.more  
D.far

A.see
B.meet  
C.notice  
D.look

A.run
B.worked  
C.indicated  
D.shown

A.if
B.although  
C.so  
D.because

A.for
B.in  
C.on  
D.of