For the first time, scientists have created pigs, goats and cattle that can serve as viable "surrogate sires," male animals that produce sperm carrying only the genetic traits of donor animals.
Biotechnology
Sep 14, 2020
10
378
An international team of researchers has discovered that contrary to conventional views, a male mammal was found able to exert inadvertent gender bias ratios in his offspring. In their paper published in the journal Proceedings ...
The Y chromosome is a symbol of maleness, present only in males and encoding genes important for male reproduction. But live mouse offspring can be generated with assisted reproduction using germ cells from males with the ...
Biotechnology
Nov 21, 2013
0
0
Human embryonic stem cells derived from excess IVF embryos may help scientists unlock the mysteries of infertility for other couples struggling to conceive, according to new research from the Stanford University School of ...
Cell & Microbiology
Oct 28, 2009
0
1
For successful fertilization, sperm should move forward rapidly and be shaped correctly. The unique structure of the sperm cells forms during spermiogenesis. Now, researchers from the University Hospital Bonn (UKB) and the ...
Cell & Microbiology
Nov 28, 2023
0
26
Through an electron microscope they may look like the giant sandworms from Dune, but C. elegans nematodes are only 1 millimeter long.
Cell & Microbiology
Sep 13, 2023
0
112
Scientists have created eggs using the cells of male mice for the first time, leading to the birth of seven mice with two fathers, according to research Wednesday hailed as "revolutionary".
Biotechnology
Mar 15, 2023
2
1272
University of Copenhagen researchers have gotten yeast cells to brew triptolide, a substance typically extracted from a rare Chinese plant. Their research makes it possible to control rats with the substance on a large scale—both ...
Biotechnology
Feb 20, 2023
0
93
The male reproductive system serves as a hotspot for the emergence of new genes. Perhaps that explains why more new mutations are inherited from fathers than from mothers. It doesn't, however, clarify why older fathers pass ...
Evolution
Jan 12, 2023
0
46
Researchers at Nagoya University, Japan, have discovered a mechanism for the selective transportation of sugar and hormones in plants. The results also clarify that sugar transportation is necessary for male fertility in ...
Plants & Animals
Dec 27, 2022
0
125
