X chromosome with telomeres
Wall Art and Photo Gifts from Science Photo Library
X chromosome with telomeres
X chromosome. Computer illustration of a human X chromosome, one of the two sex chromosomes. The white cirlcles mark the areas of telomeres, the ends 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. Chromosomes are composed of deoxyribonucleic acid (DNA) coiled around proteins. DNA contains sections, called genes, which encode the bodys genetic information
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6310029
© PASIEKA/SCIENCE PHOTO LIBRARY
Ageing Aging Chromosome Complex Genetic Loop Looped Nucleoprotein Strand Telomere Telomeres Bio Chemistry Biochemical Deoxyribonucleic Acid Genetics
EDITORS COMMENTS
This print showcases a computer-generated illustration of an X chromosome with telomeres, shedding light on the intricate world of human genetics. The white circles elegantly mark the areas where telomeres reside, acting as protective caps at the ends of chromosomes. Composed of short repeated sequences of DNA and proteins, these telomeres adopt a unique looped structure. The significance of telomeres becomes apparent as they safeguard the chromosome's integrity against erosion caused by enzymes present in the cell nucleus. Moreover, their looped configuration prevents enzymes from mistakenly joining two separate chromosomes together. Telomeres play a vital role in cellular aging, influencing our biological clock. As cells replicate and age over time, these remarkable structures gradually shrink. Once a certain length is reached, an alarm bell rings within the cell - it ceases to divide and ultimately meets its demise. This delicate balance between cellular division and death underscores how crucial telomeres are in maintaining healthy functioning cells throughout our lifespan. Chromosomes themselves consist of deoxyribonucleic acid (DNA) intricately coiled around proteins. Within this complex arrangement lies genetic information encoded in sections called genes that shape our bodies' characteristics and functions. Through this mesmerizing artwork capturing biology's essence, we delve into biochemistry's wonders while contemplating life's perpetual cycle - aging gracefully alongside our ever-evolving chromosomes governed by these extraordinary telomeric guardians.
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