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The product of two CW complexes can be made into a CW complex. Specifically, if X and Y are CW complexes, then one can form a CW complex X × Y in which each cell is a product of a cell in X and a cell in Y, endowed with the weak topology. The underlying set of X × Y is then the Cartesian product of X and Y, as expected.
The cell on the left is going through mitosis and its chromosomes have condensed. Cell nucleus: A cell's information center, the cell nucleus is the most conspicuous organelle found in a eukaryotic cell. It houses the cell's chromosomes, and is the place where almost all DNA replication and RNA synthesis (transcription) occur.
The Human Cell Atlas is a global consortium that is creating detailed maps of the cells in the human body to transform understanding of health and disease. The Human Cell Atlas is a global project to describe all cell types in the human body. [1] The initiative was announced by a consortium after its inaugural meeting in London in October 2016 ...
A plant cell wall was first observed and named (simply as a "wall") by Robert Hooke in 1665. [3] However, "the dead excrusion product of the living protoplast" was forgotten, for almost three centuries, being the subject of scientific interest mainly as a resource for industrial processing or in relation to animal or human health.
This is an accepted version of this page This is the latest accepted revision, reviewed on 19 September 2024. African-American woman (1920–1951), source of HeLa immortal cell line "Lacks" redirects here. For other uses, see Lack. Henrietta Lacks Lacks c. 1945–1951 Born Loretta Pleasant (1920-08-01) August 1, 1920 Roanoke, Virginia, U.S. Died October 4, 1951 (1951-10-04) (aged 31) Baltimore ...
Cellular lattice tower A cell tower in the bush in Africa. A cell site, cell phone tower, cell base tower, or cellular base station is a cellular-enabled mobile device site where antennas and electronic communications equipment are placed (typically on a radio mast, tower, or other raised structure) to create a cell, or adjacent cells, in a cellular network.
Cellular manufacturing involves the use of multiple "cells" in an assembly line fashion. Each of these cells is composed of one or multiple different machines which accomplish a certain task. The product moves from one cell to the next, each station completing part of the manufacturing process. Often the cells are arranged in a "U-shape" design ...
The story of how the HeLa cell line came to be was also the subject of a 2010 episode of the podcast Radiolab. [68] HeLa cells were the subject of a 2010 book by Rebecca Skloot, The Immortal Life of Henrietta Lacks, investigating the historical context of the cell line and how the Lacks family was involved in its use. [13]