A) escaping any possible compression by the visceral organs B) maintaining the scrotal temperature lower than the internal body temperature... View Article
The number of cells in a tissue, and thus the size of that tissue, is determined not only by the... View Article
In several cultured vertebrate cell lines, the duration of G1, and hence entry into the cell cycle, seems to depend... View Article
Growth and division are coordinated by multiple mechanisms in animal cells. The coordination of division and growth is attained in... View Article
Cells monitor the levels of the many types of nutrients in the environment and adjust their metabolism accordingly, leading to... View Article
Many eukaryotic cells are able to adjust their rate of growth in response to changes in various regulatory factors, which... View Article
Several eukaryotic cells supervise the levels of different nutrients in the environment and conform their rates of growth and metabolism... View Article
Unlike yeast cells, the cells of multicellular organisms divide only when the organism as a whole needs new cells to... View Article
Cell growth takes place in the absence of cell division for the production of large cells, namely oocytes and neurons... View Article
In a proliferating cell population, maintenance of cell size requires that a cell doubles in mass during each cell cycle.... View Article
The pace of cell division is regulated by a combination of extracellular and intracellular factors. Yeast proliferation is limited primarily... View Article
When environmental conditions are ideal, yeast and other unicellular organisms reproduce as rapidly as possible, progressing from one cell cycle... View Article
Centrosome duplication is completely uncoupled from DNA duplication in some cell types. In the endocycling cells of Drosophila larvae, for... View Article
It is important that the cell enters mitosis with precisely two centrosomes. Cells containing abnormal numbers of centrosomes tend to... View Article
Centrosome duplication is largely complete by the beginning of mitosis, although the new centriole is not completely finished until late... View Article
The centrosome of animal cells is located in the cytoplasm just outside the nuclear envelope. The centrosome contains a pair... View Article
The centrosome and the spindle pole body are the only major subcellular organelles—other than the chromosomes—that are present in only... View Article
A microtubule behavior also results from the higher rate of tubulin association at the plus end than at the minus... View Article
As all the tubulin dimers in a filament are aligned in the same way, the two ends of a microtubule... View Article
The construction of a bipolar spindle in all eukaryotes is largely based on the ability of the spindle elements to... View Article
