Chromosome 7 News and Research

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Humans normally have 46 chromosomes in each cell, divided into 23 pairs. Two copies of chromosome 7, one copy inherited from each parent, form one of the pairs. Chromosome 7 spans about 159 million DNA building blocks (base pairs) and represents more than 5 percent of the total DNA in cells.

Identifying genes on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome 7 likely contains about 1,150 genes.

Genes on chromosome 7 are among the estimated 20,000 to 25,000 total genes in the human genome.

Researchers uncover cause for progression of prostate cancer to incurable stage

Researchers at the University of Oulu in Finland have discovered novel genes and mechanisms that can explain how a genomic variant in a single nucleotide polymorphism rs11672691 influences prostate cancer aggressiveness.

20 Jul 2018

Researchers raise viability of cloned mice using somatic cell nuclear transfer method

An international group of researchers have raised the viability of mice that were cloned using a method called somatic cell nuclear transfer, by stimulating two epigenetic factors, and by doing this have shown that creating cloned animals more efficiently will require further work in the area of epigenetics.

20 Jul 2018

Study findings highlight importance of early detection of SMA through newborn screening

Spinal muscular atrophy is a genetic disease that affects motor neurons in the spinal cord, resulting in muscle atrophy and widespread weakness that eventually impair swallowing and breathing.

17 Jul 2018

Researchers solve mystery of final blood group system

Ever since the blood type was discovered in 1962, no one has been able to explain why some people become Xga positive while others are Xga negative.

16 Jul 2018

Research sheds on how new species may arise from rapid mitochondrial evolution

Genetic research at Oregon State University has shed new light on how isolated populations of the same species evolve toward reproductive incompatibility and thus become separate species.

13 Jul 2018

New findings refine link between clonal hematopoiesis and blood cancer risk

It's a common occurrence in elderly people: Blood cells carrying mutated DNA explosively increase in number, resulting in genetic "mosaicism": the presence of a population of cells that carries an altered genome.

12 Jul 2018

Researchers uncover molecular drivers of a deadly pediatric cancer

Researchers have made important discoveries about the molecular mechanisms driving acute myeloid leukemia (AML), a deadly pediatric cancer.

11 Jul 2018

Researchers unmask functioning of protein involved in DNA repair during spermatogenesis

Researchers from the Department of Cell Biology, Physiology and Immunology and the Institute for Biotechnology and Biomedicine of the Universitat Autònoma de Barcelona have unmasked the functioning of a protein involved in DNA repair, ATR, in the meiotic recombination process which takes place during the development of spermatocytes - sperm precursor cells- and how inhibiting this protein causes anomalies which block spermatogenesis.

9 Jul 2018

Researchers discover biomarkers that accurately identify hypervirulent K. pneumoniae

Imagine a pathogen that infects completely healthy people and can cause blindness in one day and flesh-eating infections, brain abscesses and death in just a few days.

9 Jul 2018

Study explains why men are more at risk for neurodevelopmental disorders

A new study has shed light on the reason why males are more at risk than females for neurodevelopmental disorders such as autism, schizophrenia and ADHD.

4 Jul 2018

Genes associated with autism interact to modulate variable symptoms of disease

Genes located in a large chromosomal aberration associated with autism interact with each other to modulate the variable symptoms of the disease, according to new research.

29 Jun 2018

Hearing partially restored in deaf lab mice using novel therapy

A small molecule of a drug has been successfully used to treat an inherited form of hearing loss in laboratory mice.

28 Jun 2018

USC study reveals how the cell launches emergency response to repair damaged DNA

The cell has its own paramedic team and emergency room to aid and repair damaged DNA, a new USC Dornsife study reveals.

21 Jun 2018

Scientists explore interactions between chromosomes 12 and 17

How are chromosomes arranged in the cell nucleus? Is it possible that they communicate with one another by "touching" each other?

21 Jun 2018

Researchers identify gene enhancer that affects sex determination

Researchers have identified a gene enhancer that is critical for male sex development and shown that deleting it results in male-to-female sex reversal in mice.

15 Jun 2018

Researchers discover protein responsible for X chromosome inactivation

Researchers have discovered that the structural protein SMCHD1 is required to prevent genes from both X chromosomes being expressed in female mammals.

7 Jun 2018

Scientists shed light on key aspect of healthy cell division

Scientists have shed light on a key aspect of healthy cell division, helping build a clearer picture of the complex mechanisms involved.

5 Jun 2018

Researchers discover three genes that may have contributed to evolution of large human brain

Three genes involved in nerve cell generation in the brain emerged roughly 3.5 million years ago and may have contributed to the rapid evolution of the large human brain, Howard Hughes Medical Institute (HHMI) Investigator David Haussler and colleagues report on May 31, 2018, in the journal Cell.

1 Jun 2018

Scientists develop new method to speed up genome evolution of baker's yeast

Scientists have created a new way of speeding up the genome evolution of baker's yeast Saccharomyces cerevisiae, the same yeast people use for bread and beer production, to develop a synthetic yeast strain that can be transformed on demand for use in various industrial applications.

26 May 2018