Explanation:
The identification is based primarily on the analysis of one or two regions of the ribosomal DNA: sequencing of the D1 / D2 domains of the 28S rRNA gene and / or of the ITS region (ITS1 and ITS2 intergenic spaces and that includes the 5.8S rRNA gene ). Its comparison with the sequences available in public databases allows the strains to be assigned to a specific species when the homology percentage of its sequences is greater than or equal to 99%.
It is a chemical property because the Silver’s chemical composition is altered when it tarnishes.
The answer is to this question is A
Answer:
the hormone receptor is a heterotetramer composed of two subunits with 95 kDa and two subunits with 135 kDa
Explanation:
In this case, the heterotetramer is composed of two heterodimers, each composed of two subunits that held together by disulfide bonds. These heterodimers bind together through hydrophobic interactions in order to form a tetramer. The Sodium Dodecyl Sulfate (SDS) is a denaturing detergent that dissociates both heterodimers by interfering with hydrophobic interactions that hold heterodimers together. It is for that reason that only a single band of 230 kDa is observed (135 kDa + 95 kDa = 230 kDa). Moreover, 2-Mercaptoethanol breaks disulfide bonds, thereby separating the two subunits in the heterodimer. In consequence, after the use of this chemical compound (2-Mercaptoethanol), two different bands with 135 kDa and 95 kDa can be observed.
The northern states, or the Union states.
