• 1991
  • In a comparative study of five sub-species and A.m.iberica (Smith,Palopoli,Taylor,Garnery,Cornuet,Solignac,Brown 1991) cleavage maps obtained through the use of restriction enzyme showed the Spanish Honey bee contains mtDNA similar to intermissa and also mellifera. (wikipedia.org)
  • site
  • If you know of a restriction site placed towards one end of the insert you can determine the orientation by observing the size of the fragments in the gel. (wikipedia.org)
  • In such cases, a cladogram can be constructed from the restriction site data to estimate the evolutionary steps that interrelate the observed haplotypes to one another. (genetics.org)
  • directly
  • These techniques consequently allow researchers to observe chromosomes directly so that a map may be constructed with relative gene positions. (wikipedia.org)
  • contains
  • Always set the map height explicitly to define the size of the div * element that contains the map. (google.com)
  • sections
  • This observation leads to the natural definition of presheaves with additional algebraic structure such as presheaves of groups, of abelian groups, of rings: sets of sections are required to have the specified algebraic structure, and the restrictions are required to be homomorphisms. (wikipedia.org)
  • Given a presheaf, a natural question to ask is to what extent its sections over an open set U are specified by their restrictions to smaller open sets Vi of an open cover of U. A presheaf is separated if its sections are "locally determined": whenever two sections over U coincide when restricted to each of Vi, the two sections are identical. (wikipedia.org)
  • Finally, a separated presheaf is a sheaf if compatible sections can be glued together, i.e., whenever there is a section of the presheaf over each of the covering sets Vi, chosen so that they match on the overlaps of the covering sets, these sections correspond to a (unique) section on U, of which they are restrictions. (wikipedia.org)
  • specific
  • Maps provide researchers with the opportunity to predict the inheritance patterns of specific traits, which can eventually lead to a better understanding of disease-linked traits. (wikipedia.org)
  • technique
  • resultant map Rapid Denaturation and Renaturation of a crude DNA preparation by alkaline lysis of the cells and subsequent neutralization In this technique the cells are lysed in alkaline conditions. (wikipedia.org)
  • frequency
  • In order to calculate the map distance between STSs, researchers determine the frequency at which breaks between the two markers occur (see shotgun sequencing) Genetic mapping is focused on the principles first established by Gregor Mendel. (wikipedia.org)
  • hand
  • On the other hand, to each continuous map there is associated both a direct image functor, taking sheaves and their morphisms on the domain to sheaves and morphisms on the codomain, and an inverse image functor operating in the opposite direction. (wikipedia.org)
  • Edit
  • Edit maps in a WYSIWYG environment so that printed output matches what's on the screen. (bio.net)