What is SAT Chromosome?
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Satellite chromosomes are chromosomes that contain secondary constructs that serve as identifying markers. Besides the centromere, one or more secondary constrictions can also be observed in some chromosomes at metaphase.
Explanation:
A satellite chromosome or SAT chromosome has a chromosomesegment that is separated from the main body of the chromosome by such a secondary constriction. The term is due to Sergei Navashin, in 1912. The satellite at metaphase appears to be attached to the rest of the body of chromosomes by a thread of chromatin.
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These satellites remain connected to chromosomes by a thin appendage. Chromsomes with such satellites are called ‘sat-chromosomes’.
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