They found some 4600 tentative genes, many of which are identical to and in the same
order along the chromosome as those of a common, typically harmless gut bacterium, Escherichia coli — a close relative.
Not exact matches
In
order to isolate the 3D structure of the
chromosome during metaphase, the authors used a combination of
chromosome conformation capture technologies (3C, 5C and Hi - C) developed by the Dekker lab over the last decade to map the points of contact
along the mitotic
chromosome in different cell types synchronized to divide at the same time.
The mouse genome is sometimes described as the human genome chopped into 150 pieces and put back in a different
order along the mouse's 21
chromosomes.
Repetitive DNA and similar sequences are a sequencer's nightmare because the sequence is generated in pieces that must be matched up correctly to figure out the
order of the bases
along each
chromosome.
Consider the horizontal
order of letters in the illustration below to represent different locations
along a straightened - out
chromosome, and the vertical arrangement to represent decreasing dominance.