where are embryonic stem cells found, how are they harvested? where are adult stem cells found, how are they harvested? references?

Fumarases (Fums) catalyze the reversible reaction converting fumarate to L-malate. There are two kinds of Fums: Class І and ІІ. Thermostable Class ІІ Fums, from mesophilic microorganisms, are utilized for industrial L-malate...

1. In ecological studies, sampling methods are used in three ways: random sampling (large numbers of samples are taken from different points of the habitat), systematic sampling (samples are taken...

Both B cells and T cells are lymphocytes that are derived from specific types of stem cells, called multipotent hematopoietic stem cells, in the bone marrow. After they are made...

Cells in the developing embryo are in constant communication with their neighbors, and the molecules they use to send and receive signals are essential for normal embryogenesis. Several intracellular signaling pathways have been identified, some of which are activated in response to secreted growth factors.

d. all of the aboveThere are three different types of basic cell communication: surface membrane to surface membrane; exterior, which is between receptors on the cell; and direct communication, which...

The mechanism that Darwin proposed forevolution is natural selection. Because resources are limited in nature, organisms with heritable traits that favor survival and reproduction will tend to leave more offspring than their peers, causing...

Specifically, erythropoiesis is the process by which red blood cells (erythrocytes) are produced. Erythrocytes arise from a complex line of cells, and their rate of production is tightly regulated to...

Morphogenetic movements relate not only to gastrulation, but to embryonic development too. Morphogenetic movement in the early embryo takes place mainly through the movement and deformation of the epithelial cells,...

The extra embryonic cavity is made by amnion (amniotic cavity). Amnion develops from ectoblastic vesicle and creates a cavity filled by liquid that protects embryo from mechanical hurts and makes...

Using UV detection for amino acids in most cases requires using the absorption of the carboxyl group (-COOH) in the 200 to 210 nm range.Tryptophan will absorbs more light at...