水稻高秆(A)对矮杆(a)为显性,抗病(B)对感病(b)为显性,两对基因独立遗传。若让基因型为Aabb的水稻与“某水稻”杂交,子代表现型及其比例如图所示, 则“某水稻”的基因型为( ) A.AaBb B.AaBB C.aaBb D.aabb
Did you call Fred back?
I didn't need to, I'll see him tomorrow.( )
because
unless
when
though
That's all I have to say.Is there anything you'd like to ?( )
talk
require
hold
add
Is it OK if I sit on this chair?
Sorry. ( )
Here you are.
Take it.
Not at all.
It's taken.
If there's a lot of work ,I'd like to keep on until it is finished.( )
do
to do
done
doing
Hi,Mary.You look
Yeah,I'm going to America with my parents for a vacation.( )
kind
moved
excited
sad