Achieving pregnancy has been shown to be more likely between partners who carry dissimilar human leucocyte antigen (HLA) immune genes. Accordingly, humans are expected to choose HLA dissimilar reproductive partners. Earlier ...
Evolution
Aug 19, 2020
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124
(PhysOrg.com) -- For better and for worse, human health depends on a cell's motility -- the ability to crawl from place to place. In every human body, millions of cells –are crawling around doing mostly good deeds -- ...
Cell & Microbiology
Oct 18, 2011
5
0
Turbulent flows surround us, from complex cloud formations to rapidly flowing rivers. Populations of motile bacteria in liquid media can also exhibit patterns of collective motion that resemble turbulent flows, provided the ...
Soft Matter
Nov 30, 2015
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8
The same lipid that helps algae swim toward the light also appears to enable one type of brain cell to keep cerebrospinal fluid moving, researchers report.
Cell & Microbiology
Nov 3, 2015
1
470
A team of engineers at Monash University in Australia has found that exposing human sperm to ultrasound can cause them to swim faster. In their study, published in the journal Science Advances, the group exposed human semen ...
Centrioles are barrel-shaped connection hubs that, like key Meccano parts, hold together the microtubule connection rods that form the structural framework of the cells in our bodies.
Biochemistry
Feb 1, 2011
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0
In mammalian reproduction, sperm have a tough task: like trout swimming upstream, they must swim against a current through a convoluted female reproductive tract in search of the unfertilized egg.
Cell & Microbiology
Apr 15, 2015
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18
Bacteria are the most abundant form of life on Earth, and they are capable of living in diverse habitats ranging from the surface of rocks to the insides of our intestines. Over millennia, these adaptable little organisms ...
Cell & Microbiology
Mar 29, 2016
0
353
Waves of undulating cilia drive several processes essential to life. They clear debris and mucus from the respiratory tract, move spinal fluid through the brain and transport embryos from the ovaries to the uterus for implantation. ...
Cell & Microbiology
Jan 14, 2019
0
69
The process of normal cell division in the human body is quite simple: start dividing in response to a signal, such as a wound, and stop when enough cells have been produced and the skin is healed. But cancerous cells ignore ...
Cell & Microbiology
Oct 21, 2021
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