Oncology & Cancer

HPV strains may impact cervical cancer prognosis

An analysis of cervical cancers in Ugandan women has uncovered significant genomic differences between tumors caused by different strains of human papillomavirus (HPV), signifying HPV type may impact cervical cancer characteristics ...

Oncology & Cancer

Four-stranded DNA structures found to play role in breast cancer

Four stranded DNA structures—known as G-quadruplexes—have been shown to play a role in certain types of breast cancer for the first time, providing a potential new target for personalised medicine, say scientists at the ...

Diseases, Conditions, Syndromes

Insight on novel genetic approaches to metabolic liver diseases

Diabetes, obesity and nonalcoholic fatty liver disease (NAFLD) are all common diseases that can lead to serious health implications. NAFLD affects over 30% of Americans, and is characterized as a fatty liver, which can progress ...

Genetics

Researchers generate complete human X chromosome sequence

Researchers at the National Human Genome Research Institute (NHGRI), part of the National Institutes of Health (NIH), have produced the first end-to-end DNA sequence of a human chromosome. The results, published today in ...

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Human genome

The human genome is the genome of Homo sapiens, which is stored on 23 chromosome pairs. Twenty-two of these are autosomal chromosome pairs, while the remaining pair is sex-determining. The haploid human genome occupies a total of just over 3 billion DNA base pairs. The Human Genome Project (HGP) produced a reference sequence of the euchromatic human genome, which is used worldwide in biomedical sciences.

The haploid human genome contains an estimated 20,000–25,000 protein-coding genes, far fewer than had been expected before its sequencing. In fact, only about 1.5% of the genome codes for proteins, while the rest consists of RNA genes, regulatory sequences, introns and (controversially) "junk" DNA.

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