Since the gene for, say, collagen in bones does not have exactly the same DNA sequence in humans and mice, the collagen produced is not exactly the same, but it functions similarly.
ST6 variety had Ghd7-6 andele and the others had exactly the same DNA sequences as variety Minghui63, which had the fully functional yield-positive Ghd7-1 allele.
Identical twins may share exactly the same DNA but is it still possible to tell them apart or identify something special about one from the other?
Despite having exactly the same DNA, the mice had wildly varying coat colors, ranging from yellow to mottled and nearly everything in between.
The field of epigenetics has recently made a landmark entry in the research of forensic sciences as it has a high significance in critical identification and analysis of forensic samples which otherwise contain exactly the same DNA sequences.
As some of them shared exactly the same DNA sequences, there were ultimately nine different types of CYP102A1 natural variants (Figure 1a, Table 1 and 2), including four previously reported variants (CYP102A1.1) (Ruettinger et al. 1989).
Monozygotic (MZ) twins having phenotypic differences subtle or otherwise carry exactly the same DNA sequence (concordant) throughout the genome they inherit and hence puts a roadblock to their identification using conventional STR, SNP, or mtDNA profiling (Chatterjee & Morison, 2011).
Differences that explain why identical twins - who share exactly the same DNA and very similar environments - can sometimes look so different, and often develop and die from different diseases.
As both individuals have exactly the same DNA sequence, conventional genotyping approaches such as STR, SNP, sex chromosome STR, and mtDNA analyses cannot tell them apart.
Therefore these regions have been the specific subject of a large-scale cloning project, generating the Promoterome [ 8]. C. elegans promoters were cloned using the MultiSite Gateway system [ 13] so that exactly the same DNA fragments could be subject to multiple large scale analyses, including reporter fusion [ 8] and protein::DNA interaction [ 14] assays.
