Phytochrome is a

If the points $(1,2)$ and $(3,4)$ lie on the same side of the straight line $3x - 5y + a = 0$,then $a$ lies in the set

$A$ parallel plate capacitor with plate area $A$ and separation $d$ is filled with two dielectric materials as shown in the figure. The dielectric constants are $K_1$ and $K_2$ respectively. The capacitance will be

Which type of cartilage is found at the ends of long bones?

Double fertilization is a characteristic feature of which of the following?

What is the advantage of pollen culture?