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Centromeres Collection

Centromeres: The Key to Chromosomal Organization Astrocyte nerve cells may be the stars of our brain

Background imageCentromeres Collection: Astrocyte nerve cell

Astrocyte nerve cell. Fluorescent light micrograph of an astrocyte cell from a human brain. Intermediate filaments (IFs), part of the cells cytoskeleton, have been dyed green

Background imageCentromeres Collection: Targeted gene on a chromosome, SEM

Targeted gene on a chromosome, SEM
Targeted gene on a human chromosome. Composite coloured scanning electron micrograph (SEM) of a targeted gene (yellow) on one arm of a human chromosome

Background imageCentromeres Collection: Chromosomes, artwork C013 / 9968

Chromosomes, artwork C013 / 9968
Chromosomes. Computer artwork of human chromosomes. Chromosomes are composed of deoxyribonucleic acid (DNA) that contain sections, called genes, which encode the bodys genetic information

Background imageCentromeres Collection: Chromosomes, artwork C013 / 4619

Chromosomes, artwork C013 / 4619
Chromosomes. Computer artwork of human chromosomes. Chromosomes are composed of deoxyribonucleic acid (DNA) that contain sections, called genes, which encode the bodys genetic information

Background imageCentromeres Collection: Chromosomes, artwork C013 / 4620

Chromosomes, artwork C013 / 4620
Chromosomes. Computer artwork of human chromosomes. Chromosomes are composed of deoxyribonucleic acid (DNA) that contain sections, called genes, which encode the bodys genetic information

Background imageCentromeres Collection: Human chromosomes, SEMs

Human chromosomes, SEMs
Human chromosomes. Collage of coloured scanning electron micrographs (SEMs) of human chromosomes. Chromosomes are a packaged form of a cells genetic material DNA (deoxyribonucleic acid)

Background imageCentromeres Collection: Human chromosomes, SEMs C013 / 4989

Human chromosomes, SEMs C013 / 4989
Human chromosomes. Collage of coloured scanning electron micrographs (SEMs) of human chromosomes. Chromosomes are a packaged form of a cells genetic material DNA (deoxyribonucleic acid)

Background imageCentromeres Collection: Female sex chromosomes

Female sex chromosomes. Computer artwork of human X chromosomes (pink). In the background are female gender symbols. The X chromosome is one of two sex chromosomes

Background imageCentromeres Collection: Mitosis, fluorescence micrograph

Mitosis, fluorescence micrograph
Mitosis. Fluorescence micrograph of a cell (centre) in anaphase during mitosis (nuclear division). During mitosis two daughter nuclei are formed from one parent nucleus

Background imageCentromeres Collection: Abnormal mitosis

Abnormal mitosis
Mitosis. Fluorescence micrograph of a cell during abnormal anaphase of mitosis (nuclear division). During mitosis two daughter nuclei are formed from one parent nucleus

Background imageCentromeres Collection: Mitosis, TEM

Mitosis, TEM
Mitosis, coloured transmission electron micrograph (TEM). Longitudinal section through a human T cell in metaphase. During mitosis two daughter nuclei are formed from one parent nucleus

Background imageCentromeres Collection: Mitosis

Mitosis. Fluorescence micrograph of a cell during prometaphase of mitosis (nuclear division). During mitosis two daughter nuclei are formed from one parent nucleus

Background imageCentromeres Collection: Sperm fertilising an egg, artwork

Sperm fertilising an egg, artwork
Sperm fertilising an egg. Cutaway artwork of a human sperm cell (spermatozoon) penetrating an egg cells (ovum) thick outer layer (zona pellucida). The egg cells membrane is at top right

Background imageCentromeres Collection: Human chromosomes, artwork

Human chromosomes, artwork
Human karyotype, computer artwork. A karyotype is the complete set of chromosomes of an organism. Humans have 46 chromosomes in total

Background imageCentromeres Collection: Human karyotype, artwork

Human karyotype, artwork
Human karyotype, computer artwork. A karyotype is the complete set of chromosomes of an organism. Humans have 46 chromosomes in total

Background imageCentromeres Collection: Chromosomes and DNA

Chromosomes and DNA (deoxyribonucleic acid) molecules, computer artwork. Chromosomes are composed of DNA coiled around proteins

Background imageCentromeres Collection: Chromosomes

Chromosomes and DNA (deoxyribonucleic acid) molecules on a DNA autoradiogram, computer artwork. Chromosomes are composed of deoxyribonucleic acid (DNA) coiled around proteins

Background imageCentromeres Collection: DNA

DNA
Deoxyribonucleic acid. Conceptual artwork of DNA (deoxyribonucleic acid) spelt out with fluoresence micrographs of anaphase stage cells. Anaphase is a stage of mitosis (nuclear division)

Background imageCentromeres Collection: Human chromosome 16, SEM

Human chromosome 16, SEM
Human chromosome 16, coloured scanning electron micrograph (SEM). Chromosomes are a packaged form of the genetic material DNA (deoxyribonucleic acid)

Background imageCentromeres Collection: Human chromosome 10, SEM

Human chromosome 10, SEM
Human chromosome 10, coloured scanning electron micrograph (SEM). Chromosomes are a packaged form of the genetic material DNA (deoxyribonucleic acid)



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Centromeres: The Key to Chromosomal Organization Astrocyte nerve cells may be the stars of our brain, but within each cell lies a fascinating world of genetic organization. Enter centromeres - the unsung heroes responsible for ensuring proper distribution of human chromosomes during cell division. Underneath an electron microscope, human chromosomes reveal their intricate structure. SEM images showcase these bundles of DNA, tightly wound and neatly packaged within our cells. Amongst this organized chaos, centromeres stand out as crucial structures that hold everything together. These specialized regions play a pivotal role in chromosome segregation during mitosis and meiosis. They act as anchor points where spindle fibers attach, allowing for precise separation into daughter cells or gametes. Without centromeres' guidance, errors in chromosomal distribution can lead to genetic disorders like Down syndrome or Turner syndrome. The significance becomes even more apparent when observing targeted genes on chromosomes under SEM magnification. These microscopic snapshots highlight how specific sections are marked by these essential structures, acting as signposts for gene expression and regulation. Through countless divisions and generations, human chromosomes rely on the stability provided by centromeres to maintain genomic integrity. Their presence ensures that each new cell receives its rightful share of genetic material while preventing any loss or duplication along the way. So next time you marvel at the complexity of our nervous system's astrocyte nerve cells or ponder over the intricacies hidden within human chromosomes – take a moment to appreciate the vital role played by those tiny yet mighty centromeres in preserving life's blueprint with remarkable precision.