Somatic and Germline Cells

Name the type of cells that divide to form sperm and eggs. (1)

Germline

Name the type of cell division that takes place immediately after the nuclei of the sperm and egg fuse. (1)

Mitosis

Explain why embryonic stem cells are described as being pluripotent. (1)

They can differentiate into any cell type

In a developing embryo, tissues such as muscle and nerve are produced by

A somatic cells dividing by meiosis

B germline cells dividing by meiosis

C somatic cells dividing by mitosis

D germline cells dividing by mitosis

C somatic cells dividing by mitosis

Write notes on somatic and germline cells, including cell divison in both these cell types. (8)

• A somatic cell is any cell other than germline cells.

• Germline cells are gametes.

• Mitosis of somatic cells produces more somatic cells.

• Mitosis of germline cells produces more germline cells.

• Meiosis of germline cells produces more gametes.

• Meiosis and two stages.

• First stage separates homologous chromosomes.

• Second stage separates chromatids.