Related topics: genes · cells · protein · genome · cancer cells

Study: How placentas evolved in mammals

The fossil record tells us about ancient life through the preserved remains of body parts like bones, teeth and turtle shells. But how to study the history of soft tissues and organs, which can decay quickly, leaving little ...

How human brain development diverged from great apes

Researchers from the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, Institute of Molecular and Clinical Ophthalmology Basel, and ETH Zurich, Switzerland, have presented new insights into the development ...

How organ functions were shaped over the course of evolution

A large-scale study conducted by molecular biologists from Heidelberg University has yielded groundbreaking new insights into the evolution and regulation of gene expression in mammalian organs. The scientists investigated ...

A new model for the evolution of honey bee brains

Researchers have proposed a new model for the evolution of higher brain functions and behaviors in the Hymenoptera order of insects. The team compared the Kenyon cells, a type of neuronal cell, in the mushroom bodies (a part ...

Microbes seen controlling action of host's genes

All animals—from sea sponges to modern-day humans—evolved in a world already teeming with microbes. These single-celled microorganisms now cover practically every surface of our bodies and are as much a part of our biology ...

An epigenetic key to unlock behavior change

When it comes to behaviour, researchers have moved beyond the "nature versus nurture" debate. It's understood that genes and environment both play a role. However, how they interact at a molecular level to shape behaviour ...

Chromosomes reconfigure as cell division ends

Cellular senescence—when a cell can no longer divide—is a programmed stage in a cell's life cycle. Sometimes, as in aging, we wish it didn't happen so much and sometimes, as in cancer, we wish it would happen more. Given ...

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