STD 11 - 8. Cell the unit of life — NEET STD 11 Science — Question

Dead animal $\rightarrow$ Blow flymaggots $\rightarrow$ Common frog $\rightarrow$ Snake

$(a)\; DNA$ 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

$A$. Asexual reproduction occurs usually by biflagellate zoospores.

$B$. Sexual reproduction is by oogamous method only.

$C$. Stored food is in the form of carbohydrates which is either mannitol or laminarin.

$D$. The major pigments found are chlorophyll $a$, $c$ and carotenoids and xanthophyll.

$E$. Vegetative cells have a cellulosic wall, usually covered on the outside by gelatinous coating of algin.

Choose the correct answer from the options given below: