How Can The Fluorescence Intensity Be Measured?
A large population of cells is treated with a fluorescent DNA dye and then injected into an instrument called a... View Article
Latest Posts
What Is Flow Cytometry?
It is a technique used to enumerate and analyze a sample of cells by incubating them with one or more... View Article
What Is RNA Interference?
A more specific approach to disrupting gene expression in mammalian cells is RNA interference (RNAi), which triggers the destruction of... View Article
What Is A Drawback Of Mammalian Cells As An Experimental System?
The major weakness of mammalian cells as an experimental system is the lack of rapid and specific methods for blocking... View Article
What Can Result In The Immortalization Of Cells?
Transformed cell lines have accumulated widespread genetic damage that not only results in immortalization but also disrupts the controls that... View Article
Why Is Immortalization Difficult In Human Cells?
When grown for long periods in culture, cells in a population can accumulate spontaneous mutations that prevent senescence, resulting in... View Article
What Is The Cause Of Senescence In Cells Such As Human Cells?
Senescence in some cells, particularly human cells, is due to changes in the structure of the telomere, a complex DNA–protein... View Article
Describe One Mechanism From Which Cell Senescence Results.
Cell senescence results from at least two general mechanisms. One of which is – many cell types (particularly rodent cells)... View Article
What Is Replicative Senescence?
A mammalian cell-cycle analysis is best performed with cells that have been taken directly from the animal and grown in... View Article
Where Are Imaginal Discs Used?
The imaginal discs are useful for analyzing the role of regulatory proteins in the control of cell proliferation. The eye... View Article
Is Blastoderm Formation Followed By Gastrulation?
Blastoderm formation is followed by gastrulation, the process by which cell movement and differentiation transforms the simple cellular blastoderm into... View Article
What Is A Cellular Blastoderm?
After fertilization, the fusion of sperm and egg nuclei results in a zygote nucleus that undergoes a series of rapid... View Article
Why Is The Centrosome Duplicated Once Every Cell Cycle?
Not all the components of proteins are duplicated by the continuous synthesis in the process of the cell cycle. Centrosomes... View Article
How Do Membrane-bound Cytoplasmic Organelles Reproduce?
They reproduce by continuous division and growth of the already existing organelles. Lysosomes and mitochondria, the smaller organelles are seen... View Article
Why Is G1 Considered To Be A Significant Regulatory Period?
It is considered so as it is in this phase that most of the cells get committed either to continued... View Article
What Is The Nastic Movement?
These are movements seen in plants occurring while responding to the environmental stimuli, however, in contrast to tropic movements, the... View Article
Describe The Synthesis Of Non-essential Amino Acids.
Carbon skeletons of non-essential amino acids are generated from intermediates of the TCA cycle and glycolysis exception being the synthesis... View Article
Name A Tropic Response.
Tropism is a direction movement occurring in response to a direction based stimulus. Since plants cannot migrate and relocate, it... View Article
What Initiates Olfaction?
The phenomenon of olfaction commences with the olfactory fibres lining the nasal cavities in the nose. When the air enters... View Article
What Is Hyperinsulinemia?
It is the amount of insulin in one’s blood that is higher than the normal level, this Hyperinsulinemia is usually... View Article
