Whereas somatic cells undergo mitosis to proliferate, the germ cells undergo meiosis to produce haploid gametes (the sperm and the egg). … The development of a new progeny organism is then initiated by the fusion of these gametes at fertilization.
Why does meiosis occur in germ cells?
Meiosis occurs in germ cells. Both mitosis and meiosis occur in germ cells as they are required to develop and grow the complicated organ structures of its parents which necessitates cell division. Hence, mitosis and meiosis ensures cell division and organization occurs in germ cells.
Do germ cells only undergo meiosis?
Germ cells produce gametes and are the only cells that can undergo meiosis as well as mitosis. These cells are sometimes said to be immortal because they are the link between generations. Somatic cells are all the other cells that form the building blocks of the body and they only divide by mitosis.
Why do cells need to undergo meiosis?
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.
Why do germ cells undergo mitosis?
In multicellular plants and animals, however, meiosis is restricted to the germ cells, where it is key to sexual reproduction. … Whereas somatic cells undergo mitosis to proliferate, the germ cells undergo meiosis to produce haploid gametes (the sperm and the egg).
Why does meiosis and mitosis occur in germ cells Class 12?
Answer: Meiosis and mitosis occur in germ cells. This is because, the germ cells need to grow and develop the complex organ system of its parents, for which cell division is absolutely important. It is mitosis and meiosis that ensures this cell division and organisation in a germ cell.
Does meiosis start with a germ cells or somatic cells?
For clarity, the process is artificially divided into stages and steps; in reality, it is continuous and the steps generally overlap at transitions. The two-stage process of meiosis begins with meiosis I, also known as reduction division since it reduces the diploid number of chromosomes in each daughter cell by half.
Why do somatic cells undergo mitosis not meiosis?
somatic cells in animals can only undergo mitosis . Meiosis takes place in reproduction cells where the cells divide following procedural sequence.In a nutshell ,meiosis is for reproduction purposes while mitosis is for growth of new cells of other body parts ,somatic cells.
Why do somatic cells only undergo mitosis?
However, there is no need for somatic cells (body cells that do not participate in reproduction, all cells other than germ/sex cells) to be any different from each other, and so they produce identical copies through mitosis.
Why do cells undergo mitosis quizlet?
Cells undergo mitosis to replace old cells, repair damaged tissues, and for the growth of an organism.
What are the cells that undergo meiosis?
In humans, special cells called germ cells undergo meiosis and ultimately give rise to sperm or eggs. Germ cells contain a complete set of 46 chromosomes (23 maternal chromosomes and 23 paternal chromosomes).
Why are germ cells called germ cells?
A germ line is the sex cells (eggs and sperm) that are used by sexually reproducing organisms to pass on genes from generation to generation. Egg and sperm cells are called germ cells, in contrast to the other cells of the body that are called somatic cells.
What must an organism’s germ cells do?
Germ cells differentiate to produce male and female gametes, sperm and unfertilized eggs (oocytes or ova), and undergo meiosis to produce a haploid set of chromosomes. Haploid gametes then unite to form a diploid zygote that develops into a new individual.