Dictionary » I » Insertions

Insertions

Insertion sequence

mobile nucleotide sequences that occur naturally in the genomes of bacterial populations. When inserted into bacterial dna, they inactivate the gene concerned, when they are removed the gene regains its activity. Closely related to transposons and range in size from a few hundred to a few thousand bases, but are usually less than 1500 bases.


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Cell and Molecular Revision Question Help!!! (2)

... the haploid E.coli genome? LIGATION THEORY A 100bp fragment is to be cloned into the EcoRI site of pBR328 (4.9 Kb) in order to detect successful insertions using blue/white selection. Given that there are 50 nanograms of EcoRI digested pBR328, on the basis of the optimal ratio of insert: vector ...

See entire post
by Didact1
Mon Sep 30, 2013 11:35 am
 
Forum: Cell Biology
Topic: Cell and Molecular Revision Question Help!!! (2)
Replies: 0
Views: 1939

Cell and Molecular Revision Question Help!!!

... the haploid E.coli genome? LIGATION THEORY A 100bp fragment is to be cloned into the EcoRI site of pBR328 (4.9 Kb) in order to detect successful insertions using blue/white selection. Given that there are 50 nanograms of EcoRI digested pBR328, on the basis of the optimal ratio of insert: vector ...

See entire post
by Didact1
Mon Sep 30, 2013 11:34 am
 
Forum: Molecular Biology
Topic: Cell and Molecular Revision Question Help!!!
Replies: 4
Views: 2703

Re: Genes in the same linkage group are inherited together?

... alleles of the genes that are of concern here. The order of the genes themselves will remain the same barring genetic events such as deletions, insertions, translocations, or inversions. You can get more information by searching for "linkage disequilibrium" and "genetic hitchhiking".

See entire post
by wbla3335
Wed Jul 17, 2013 5:42 pm
 
Forum: Genetics
Topic: Genes in the same linkage group are inherited together?
Replies: 5
Views: 3406

Theories - Origin of Life

... of the ones you said you agreed with. The term mutation can refer to any process that changes the genetic information in the genome, including DNA insertions, deletions and rearrangements. And as already discussed ‒ rearrangements are random as well. Or to avoid giving the wrong impression, they ...

See entire post
by AstraSequi
Tue Mar 27, 2012 2:41 am
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 560
Views: 913347

Re: Theories - Origin of Life

... Natural selection is NOT random! The term mutation can refer to any process that changes the genetic information in the genome, including DNA insertions, deletions and rearrangements. Genetic variation is generated continuously by the mutational process, but its persistence in the genome is ...

See entire post
by AstraSequi
Tue Mar 27, 2012 2:21 am
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 560
Views: 913347
View all matching forum results

This page was last modified 21:16, 3 October 2005. This page has been accessed 1,996 times. 
What links here | Related changes | Permanent link