Compare and contrast the processes of mitosis and meiosis.

Mitosis
occurs in reproductive cells
needed for
growth, replacement repair and asexual reproduction
same chromosome number is present in daughter cells
two daughter cells are formed
a single nuclear division takes place after chromosome duplication
identical chromosomes are present in the daughter cells
meiosis
occurs in somatic cells
needed for
sexual reproduction.
half number of chromosomes are present in daughter cells
4 daughter cells are formed
two nuclear divisions
identity of chromosomes is randomly assorted

answer: - b cells

explanation: -

there are many types of white blood cells present in our body. one such class of white blood cells are the lymphocytes. the b cells belong to the lymphocyte class of wbcs. the b cells perform their action against the pathogen by producing specialised proteins called as antibodies. these antibodies are produced as and when the b cells encounter pathogens in response to the antigens present on the surface of the pathogen. these antibodies bind to the antigens present on the pathogen and then, target them for destruction by other cells of the immune system.

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

Bhope this : )