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beta galactosidase breaks onpg into galactose and ortho-nitrophenol which gives a yellow colour
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The bottom of your feet are yellow what does this mean?
This means you may be eating food that is high in beta-carotenes. Foods that are high in beta-carotenes are foods that are yellow or orange in color such as squash, carrots etc.
What is Beta-lactamase positive?
Beta-lactamases are enzymes produced by bacteria. Gram-positive bacteria can produce beta-lactamases. This type of bacteria takes up the crystal violet stain in gram staining.
Explain the principle of insertional inactivation by giving a suitable example?
insertional inactivation is basically about the inactive of second marker where the protein cannot be longer produced. the suitable example is pUC19 where the lacZ gene that encoded for beta-galactosidase cannot be longer produced when the foreign gene is inserted in it..
What hormone do beta cells of the pancreatic islets produce?
the cells called islets of langerhans are inside the pancreas. there are 5 types of cellgs within the islets of langerhans. The alpha cells produce glucagon, the beta cells produce insulin, delta cells make somatostatin (a general inhibitory hormone), and the last two types of cells, PP cells and D1 cells, little is known about what they do. The Islet of Langerhans cells are most well-known for the production and secretion of insulin.
Which glands produce insulin?
In humans only the pancreas produces insulin. There are clusters of specialized cells in the pancreas called Islets of Langerhans. The cell type in the Islets that produce insulin are beta cells. (Other cell types in the Islets produce other hormones.)
The function of beta galactosidase is to?
break down the Glucose
What if Beta-galactosidase is not available?
the rate of reaction will change
Why cant the ONPG test be substituted for the determination of lactose fermentation?
ONPG test detects only presence of beta galactosidase enzyme whereas lactose fermentation requires the presence of permease as well as beta galactosidase enzyme.
Why is golden pale yellow in color?
It is rich in beta-carotene.
What color is beta herculis?
Beta Herculis is actually a binary system. The main star, of the two, is yellow.
What is Krabbe's disease caused by?
Krabbe's disease is caused by a deficiency of the enzyme galactoside beta-galactosidase.
Why is golden rice pale yellow in color?
It is rich in beta-carotene.
What happens if the beta-galactosidase in not available?
the rate of reaction will change
The bottom of your feet are yellow what does this mean?
This means you may be eating food that is high in beta-carotenes. Foods that are high in beta-carotenes are foods that are yellow or orange in color such as squash, carrots etc.
Galactose is a product of enzymatic hydrolysis of?
Galactose is obtained from lactose (the milk sugar) after its hydrolysis carried out by the enzyme beta-galactosidase (or lactase) yielding beta-D-glucose and alpha-D-galactose.
How a reporter enzyme can be used to monitor transformation of host cells by foreign DNA in addition to a selectable marker?
reporter enzymes can differentiate recombinants from non- recombinants on the basis of their ability to produce specific color in the presence of a chromogenic substrate.[ ref. insertional inactivation of beta-galactosidase when rDNA is inserted and formation of colored and non colored colonies accordingly].
How is lactose catabolized via the glycolytic pathway?
Lactose is metabolized by the enzyme beta-galactosidase giving one molecule of galactose and one molecule of glucose.
