Who coined the term 'root pressure theory'?

Who coined the term ‘root pressure theory’?
Ans. J. Priestley
Ques 2. How many of the following genotypes possibly represent
normal wings in Drosophila?
(i) Vg+Vg+
(ii) Vg+Vgni
(iii) Vg+Vgno
(iv) Vg+vst
(v) Vg+vg
A (i), (ii) and (iii) only
B (i) and (ii) only
C Only (i)
D (i), (ii), (iii), (iv) and (v)
Ans. D