Question

explain about nucleus with a diagram

Answer 1

the nucleus is the largest cellular orgenelle in animals. the mammalian cells the average diameter of the nucleus is approximately 6 micrometers which occupies about 10 % of the total cell volume
    by containing the instructions for proteins products in the dna of the nucleus all control work in the cell is carried out by proteins,enzymes,though dnacodes for other structural material only protein has  metebolic and behaviour control in the organism cell. thus, the nucleus is the cell's control cell center

Answer 2

it is important and prominent structure present inside the cell.

it control all the activities of cell

it may be spherical or irregular in shape.

nucleus is enveloped by double membrane called nuclear membrane.

this membrane posseses large number of nuclear pores.

nucleus is filled with a gel like substance called nucleoplasm.

it contain nucleoli and chromatic network.