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How eggs protect chromosome connections during prolonged dormancy
المصدر: Phys.org - latest science and technology news stories · نُشر
Eggs follow a very different developmental path from sperm. Once a male hits puberty, sperm cells are produced continuously throughout his life. Eggs, however, are all produced during the fetal stage. Once formed, eggs enter a long dormant state called the dictyate stage, in whic
Eggs follow a very different developmental path from sperm. Once a male hits puberty, sperm cells are produced continuously throughout his life. Eggs, however, are all produced during the fetal stage.
Once formed, eggs enter a long dormant state called the dictyate stage, in which the process of cell division (meiosis) is paused partway through. This dormant period ends only when the egg is ovulated.
أخبار ذات صلة
The rise and fall of mid-century modern: how millennials fell out of love with their favourite look
Once coveted for its clean lines and timeless design, the functional furniture is no longer seen as cool. Anyone for cottagecore and chrome? “I definitely don’t think it is cringe,” says Laura Budds, a vintage furniture dealer based in Norfolk. “But I do think we have reached the
Culture | The Guardian ·
Sex after baby: How childhood trauma can get in the way
Why do some parents have more sexual difficulties than others after having a baby? Childhood trauma plays a significant role, amplifying the other factors at play.
Phys.org - latest science and technology news stories ·
Measuring multiple reactions on a single electrode with extraordinary sensitivity
A reaction on a single electrode can tell scientists a remarkable amount about the chemical nature and number of analytes involved. The challenge comes when they want to distinguish many reactions on the same electrode. After more than a decade of trying to overcome that limitati
Phys.org - latest science and technology news stories ·
A protein that regulates mRNA decoding can itself be regulated with implications for understanding cancer
Decoding of messenger RNA (mRNA) occurs during translation, the vital cellular process that builds proteins. Errors in this process are known to lead to cancer growth. Scientists at St. Jude Children's Research Hospital identified how one factor involved in mRNA decoding can be a
Phys.org - latest science and technology news stories ·
Researchers observe the arrival of El Niño in Monterey Bay
For more than 30 years, MBARI technology has recorded real-time data about Monterey Bay, from oceanographic conditions at the surface to biological surveys in the depths of Monterey Canyon. These data are integral to understanding our changing ocean and underpin the institute's e
Phys.org - latest science and technology news stories ·