Difference Between Somatic and Germ Cells

Somatic vs Germ Cells

体细胞和生殖细胞之间,我们可以看到一个number of differences but, before that, we need to learn the features of somatic cell and germ cell. What are somatic and germ cells? Somatic and germ cells are the two main cell types found inmulticellularorganisms. All the cell types of the body, with the exception of germ cells, is derived from the somatic cells. Both types of cells come from thezygote. Let’s look at each cell type in little more detail before moving on to the difference between somatic and germ cells.

What is a Somatic Cell?

A somatic cell isa cell that make the body tissues of multicellular organismsanddoes not have the ability to transfer genetic information to offspring. Somatic cells have two set ofchromosomes, each received from two parents. Since, somatic cells do not have the ability to transfer genetic information, themutationsoccur in these type of cells will not be passed to the next generation. However, it may cause other injuries likecancers. The somatic cell has the ability to convert into many types of cells in the body.

What is a Germ Cell?

A germ cellcan be either asperm or an eggor an earlyembryo; a cell that is involved in the reproduction of multicellular organisms. A germ cell is mainly responsible for the transmission of genetic information to next generations. Because it carries genetic information, mutations of germ cell can also be transferred from parent to offspring. Germ cells contain only one set of chromosomes. During the reproduction process, when two germ cells from each parent come together, they form a zygote. The zygote contains both maternal and paternal chromosomes. Both somatic and germ cells come from the zygote, which will be later converted into a new offspring. The production of the sperm cell is calledspermatogenesiswhile the production ofovumis calledoogenesis.

What is the difference between Somatic and Germ Cells?

• Definition of Somatic and Germ Cells:

• Somatic cell is any cell of a multicellular organism with the exception of the cells that are predestined to formgametesor germ-line cells.

• Germ cell is a cell that have one set of chromosome and have the ability to transfer genetic information to next generations.

• Mutation:

• Mutations that occur in somatic cells affect only the individual and will not be passed on to the next generations. This mutation is responsible for most human cancers.

• Mutations that occur in germ cells can be passed to the offspring.

• Number of Chromosome Sets:

• Two sets of identical chromosomes are present in a somatic cell.

• One set of chromosomes is present in a germ cell.

• Ability to Transfer Genetic Information:

• Somatic cells cannot transfer their generic information to next generations.

• Germ cells can transfer their genetic information to next generations.

• Function:

• Somatic cells make all the body cells, except germ cells.

• Germ cells are important to transfer genetic information during the reproduction.

• Ability of Differentiation:

• Somatic cells can be differentiated into various types of cells in the body.

• Germ cells cannot be differentiated.

• Cell Division:

• Somatic cell is produced bymitosis.

• Germ cell is produced by减数分裂.

• The amount of somatic cells is higher in an individual than the amount of germ cells.

Images Courtesy:

1. Somatic cell in cloningbyBelkorin(CC BY-SA 3.0)
2. Intratubular germ cell neoplasiabyNephron(CC BY-SA 3.0)