Chromosome News and Research

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In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.

Chromosomes are not visible in the cell’s nucleus—not even under a microscope—when the cell is not dividing. However, the DNA that makes up chromosomes becomes more tightly packed during cell division and is then visible under a microscope. Most of what researchers know about chromosomes was learned by observing chromosomes during cell division.

Each chromosome has a constriction point called the centromere, which divides the chromosome into two sections, or “arms.” The short arm of the chromosome is labeled the “p arm.” The long arm of the chromosome is labeled the “q arm.” The location of the centromere on each chromosome gives the chromosome its characteristic shape, and can be used to help describe the location of specific genes.
Researchers identify new antibiotic resistance gene in bacteria from dairy cows

Researchers identify new antibiotic resistance gene in bacteria from dairy cows

Scientists use stem cells to identify underlying cellular defects that cause Angelman syndrome

Scientists use stem cells to identify underlying cellular defects that cause Angelman syndrome

New test can quickly and accurately diagnose dangerous colistin-resistant bacteria

New test can quickly and accurately diagnose dangerous colistin-resistant bacteria

Positive CHMP opinion recognizes efficacy of Biogen’s SPINRAZA for treatment of spinal muscular atrophy

Positive CHMP opinion recognizes efficacy of Biogen’s SPINRAZA for treatment of spinal muscular atrophy

Researchers use CRISPR technology to create new strain of red-eyed mutant wasps

Researchers use CRISPR technology to create new strain of red-eyed mutant wasps

Collaboration between Hamilton Robotics and Illumina creates noninvasive streamlined prenatal testing solution

Collaboration between Hamilton Robotics and Illumina creates noninvasive streamlined prenatal testing solution

Seeing genes inside living cells

Seeing genes inside living cells

Scientists discover potential trigger for MDS in children with rare genetic disorder

Scientists discover potential trigger for MDS in children with rare genetic disorder

Study explains how genetic mutations linked to telomere capping complex contribute to cancers

Study explains how genetic mutations linked to telomere capping complex contribute to cancers

Illumina introduces fast, highly accurate Veriseq NIPT Solution in the European Union

Illumina introduces fast, highly accurate Veriseq NIPT Solution in the European Union

Tumor microenvironment poses unique challenges for effective ovarian cancer T-cell therapy

Tumor microenvironment poses unique challenges for effective ovarian cancer T-cell therapy

Organoids in cell culture dish offer new insights into development of the brain

Organoids in cell culture dish offer new insights into development of the brain

Researchers provide new insights into age-related female infertility

Researchers provide new insights into age-related female infertility

Experts report serious limitations to technology for screening embryos

Experts report serious limitations to technology for screening embryos

New genetic test may give men better view on how to deal with prostate cancer risk

New genetic test may give men better view on how to deal with prostate cancer risk

Researchers develop new way to assemble genome of an organism from scratch

Researchers develop new way to assemble genome of an organism from scratch

Micron Oxford advance their cellular imaging techniques using the super-resolution Nanoimager

Micron Oxford advance their cellular imaging techniques using the super-resolution Nanoimager

Research suggests novel strategy to target genetic anomaly in prostate cancers

Research suggests novel strategy to target genetic anomaly in prostate cancers

Study identifies potential Achilles heel of kinase-driven cancers

Study identifies potential Achilles heel of kinase-driven cancers

Scientists identify genetic clues to chronic kidney disease

Scientists identify genetic clues to chronic kidney disease