Seminiferous tubules are inside each testis, and are where sperm are produced by meiosis. About 250 meters (850 feet) of tubules are packed into each testis. Spermatocytes inside the tubules divide by meiosis to produce spermatids that in turn ... Full article >>>
(Date:7/24/2008)...d, CASteroids bulk up plants just as they do human...hat tell the genes to boost growth and development...man and animal cells. A new study by plant biologi...olecular approach called proteomics to identify ke...ing how these plant hormones activate genes could ...
(Date:7/24/2008)...ne, Calif., July 24, 2008 Adult stem cells origin...nly believed, and with proper stimulation they can...disease or injury, a study by UC Irvine scientists...rue stem cells in the mammalian brain are the epen...and spinal cord, rather than cells in the subventr...
(Date:7/24/2008)...OLIS / ST. PAUL (July 24, 2008) A multi-instituti...the University of Minnesota Medical School, have d...medicine. The robust method will allow researchers... manipulate DNA sequences for inactivation or repa...Dan Voytas, Ph.D., director of the Arnold and Mabe...
(Date:7/24/2008)...S, Ohio -- A single typhoon in Taiwan buries as mu...-- as all the other rains in that country all year... State University study published in a recent issu...irst ever to examine the chemistry of stream water...hile a typhoon was happening at full force -- will...
...t, genetically modified (GM) corn has not yet spre...ter analyzing tens of thousands of seeds from maiz...exico and the United States found no evidence of t...ding surprised the researchers, said Allison Snow,...biology at Ohio State University . She helped lead...
...y when planted in the ground and even two parts of...er conjoined twin as an alien "enemy," according t...ow plants determine who is a competitor when compe... Dr. Omer Falik, postdoctoral researcher in plant ... they belong to the same plant." , The question w...
...th threats from infectious diseases in hurricane-d...r, more common infections rather than exotic disea...d using simple hygiene measures and a little commo...olera, are unlikely to break out after hurricanes ...ready naturally occur," says Ruth Berkelman, MD, C...
...hat once characterized expansive tracts of tropica... and bats. Just how big a role these winged garden...ity of Illinois at Chicago and several Latin Ameri...up essentially a living laboratory in Mexico,s gul...uthority in restoration ecology and a professor of...