See Also: mutagenesis, insertional(medicine)
insertional mutagenesis(medicine)
centrolecithal egg(medicine)
centrolecithal(medicine)
centrolecithal ovum(medicine)
insertional inactivation(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
mutagenesis(dictionary)
Mutagenesis(medicine)
transposon mutagenesis(medicine)

centrolecithal egg (medicine) and insertional mutagenesis (medicine)


centrolecithal egg (medicine)


centrolecithal egg


An egg in which the yolk is concentrated near the centre of the egg cell, as is the case in many of the insects.


insertional mutagenesis (medicine)


insertional mutagenesis


Generally, mutagenesis of DNA by the insertion of one or more bases. Specific examples:

1. Oncogenesis by insertion of a retrovirus adjacent to a cellular proto-oncogene.

2. A strategy of mutagenesis with transposons. After a round of transposition, progeny are screened by PCR, with transposon and gene specific primers, for the proximity of the transposon sequence to the gene of interest. As PCR can only produce products up to 1-2 kb, a large fraction of progeny identified as positive by PCR will have a transposon close enough to the gene to inactivate or otherwise alter its pattern of expression.