Insulators - transgenic animals, Biology

Assignment Help:

Insulators

Numerous experiments showed that a transgene is generally poorly expressed when it contains a cDNA rather than the corresponding genomic DNA; when it is integrated as multiple copies; when it contains non mammalian DNA sequences, namely CpG- rich sequences; and when it is integrated in a silent region of chromatin. The last phenomenon is known as position effect.Vector constructions may be performed taking these observations into account. It is now acknowledged that groups of genes, acting or not acting in a coordinated manner, are bordered by DNA sequences that insulate them from the rest of the chromosome. These sequences have been named insulators or LCRs (locus control regions). Insulators are composed of multiple elements. The inclusion of insulators in gene constructs greatly enhances the transgene expression.


Related Discussions:- Insulators - transgenic animals

Types of amoeboid movements, Types of Amoeboid Movements As the amoeba...

Types of Amoeboid Movements As the amoeba's cell body throws out one or a few pseudopodial lobes, a temporary rear end or uroid is pulled along. The central, more fluid protop

Phylum protozoa, what are the classfication and members af phylum protozoa

what are the classfication and members af phylum protozoa

How does the odor of flower petals help pollination, How does the odor of f...

How does the odor of flower petals help pollination? The purpose of the perfume is to attract a pollinator - insect, bat, bird or whatever. The reward for the pollinator is a m

Vacuoles, VACUOLES  Some animals cells may have  one to a few small  fl...

VACUOLES  Some animals cells may have  one to a few small  fluid  filled vacuoles.. Plants  cells  in general  possess one or a few  large vacuoles. Vacuoles  of animals  cells

Define glycogen , A glycogen molecule having entirely of glucose uni...

A glycogen molecule having entirely of glucose units, many of that are linked in long chains through α1-4 bonds.  Furthermore,  every  10  units  or  so,  the  chain  is branched

Explain japanese encephalitis, Japanese encephalitis  Japanese encephal...

Japanese encephalitis  Japanese encephalitis is an uncommon but potentially fatal mosquito-borne viral disease that occurs in rural Asia, especially near pig farms and rice pad

Explain about homeostatic regulation, What is an example of negative feebac...

What is an example of negative feeback of the homeostatic regulation? Negative feedback happens when the response to a given action makes an effect that inhibits that action. F

Define counseling and compliance for celiac disease, Define Counseling and ...

Define Counseling and compliance for celiac disease? If symptoms do not improve, the child's diet should be reviewed and evaluated. A decrease in diarrhoea, increase in height

What are the main interspecific ecological interactions, What are the main ...

What are the main interspecific ecological interactions? The major harmonious interspecific ecological interactions are: protocooperation, mutualism and commensalism. The major

Giant nerve fibres, Giant Nerve Fibres We now know that giant nerve f...

Giant Nerve Fibres We now know that giant nerve fibres take place in the central nervous system of many polychaetes, oligochaetes, insects cephalopod etc. They are broader an

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd