Genetics

Discovery reveals chromosomes organize into 'yarns'

Chromosomes, the molecular basis of genetic heredity, remain enigmatic 130 years after their discovery in 1882 by Walther Flemming. New research published online in Nature by the team of Edith Heard, PhD, from the Curie Institute ...

Genetics

Gene switch for odorant receptors

The olfactory sensory neurons in the nasal mucosa perceive the myriad smells in the air with the aid of odorant receptors. Each sensory neuron chooses one and only one receptor gene for expression. The probability that a ...

Genetics

Genetic controller prepares immune system for diverse threats

An army of immune cells circulates the human body to protect against its potential foes—viruses, bacteria, cancer cells, and other invaders. Because the immune system cannot know what to expect, it must be prepared to ...

Medical research

Cellular feast or famine

Not all cholesterol is bad. Every cell requires it for growth – they either have to get cholesterol somewhere or they die. In a new study published April 6 in the journal Cell Metabolism, researchers from Sanford-Burnham ...

Genetics

Scientists Map Genetic Regulatory Elements for the Heart

(PhysOrg.com) -- Scientists have devised a new computational model that can be used to reveal genetic regulatory elements responsible for development of the human heart and maintenance of its function.

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