STD 12 - 1. sexual reproduction in flowering plants — Biology STD 12 Science — Question

$(a)\; DNA$ is negatively charged molecule and so it is loaded on gel towards the Anode terminal

$(b) \;DNA$ fragments travel along the surface of the gel whose concentration does not affect movement of $DNA.$

$(c)$ Smaller the size of $DNA$ fragment larger is the distance it travels through it.

$(d)$ Pure $DNA$ can be visualized directly by exposing UV radiation.

Choose correct answer from the options given below

$R$ : This enzyme remain active during the high temperature including denaturation of double stranded $DNA$.

$(a)$ It came into India as a contaminant with imported wheat

$(b)$ It causes allergy

$(c)$ Asexual reproduction occurs in its flower