X chromosome,centromere and telomeres
Numéro d’image : 11587792
| Computer artwork of a X chromosome. The red regions mark out the telomeres,the ends of the chromosome and the centromere,the central region of the chromosome. Telomeres consist of short repeated sequences of DNA and proteins,and are looped. The loop structure prevents the end of the chromosome being eroded by enzymes present in the cell nucleus and prevents enzymes from joining two chromosomes together. Telomeres play an important role in cellular aging. As cells replicate and age the telomere steadily shrinks. When the telomere reaches a certain length the cell stops dividing and dies. The backgrounds shows the genetic code depicted in letters and curves | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Pasieka, Alfred |
| Taille de l’image : | 5112 px × 3996 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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