Human Chromosomes
Posted by bhavin | Posted on 4:51 AM
Chromosome is long DNA molecule which is related with the proteins. It carries the hereditary information of the organism.
Structure of Chromosomes (metaphase)
A chromosome contains number of genes and is formed form single molecule of DNA. It contains 3 nucleotide sequences which play a vital role in replication process. The three nucleotide sequences of Chromosomes are replication origin, telomere and centromere.
Stained chromosome
These chromosomes are strained with G-C (R bands) and the A-T (G brand). The dyes are specified by the base pairs. When the chromosomes get strained, the mitotic chromosomes have a special type of structure which is unbanded in nature, due to which it identifies the chromosome of the karyotype. Millions of DNA nucleotide pairs can be found in each band which does not correspond with any type of functional structure.
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