Studies of human populations and animal models suggest that a father's experiences such as diet or environmental stress can influence the health and development of his descendants. How these effects are transmitted across ...
Cell & Microbiology
Oct 17, 2018
2
10642
New research provides insight about the bedrock scientific principle that mitochondrial DNA—the distinct genetic code embedded in the organelle that serves as the powerplant of every cell in the body—is exclusively passed ...
Cell & Microbiology
Sep 18, 2023
0
356
(Phys.org)—A team of researchers with the Institute for Integrative Nanosciences in Germany has tested the possibility of using sperm cells to deliver drugs to cancerous tumors in female patients. In their paper uploaded ...
Scientists in Spain on Wednesday they had created human sperm from skin cells, a medical feat which could eventually lead to a treatment for infertility.
Cell & Microbiology
Apr 27, 2016
9
3970
Turns out the comic books were wrong.
Molecular & Computational biology
Jun 12, 2021
11
244
New insights into an elusive process that protects developing sperm cells from damage in growing embryos, sheds light on how genetic information passes down, uninterrupted, through generations.
Molecular & Computational biology
Jul 17, 2020
3
1541
It has long been understood that a parent's DNA is the principal determinant of health and disease in offspring. Yet inheritance via DNA is only part of the story; a father's lifestyle such as diet, being overweight and stress ...
Molecular & Computational biology
Mar 16, 2021
9
2811
Expensive tests for measuring everything from sperm motility to cancer diagnosis have just been made hundreds of thousands of dollars cheaper by a PhD student from Brunel University London who hacked his own microscope.
Engineering
Nov 25, 2014
1
0
A trio of fluid dynamics and mathematical modelers at Kyoto University has discovered how sperm and other tiny creatures are able to skirt Newton's third law of motion. In their paper published in the journal PRX Life, Kenta ...
Scientists affiliated with the Marine Biological Laboratory (MBL) have identified a key molecule driving chemoattraction between sperm and egg cells in marine invertebrates. The study was recently published in Nature Communications.
Cell & Microbiology
Aug 3, 2018
1
695
A sperm, from the ancient Greek word σπέρμα (seed) and ζῷον (living being) and more commonly known as a sperm cell, is the haploid cell that is the male gamete. It joins an ovum to form a zygote. A zygote is a single cell, with a complete set of chromosomes, that normally develops into an embryo.
Sperm cells contribute half of the genetic information to the diploid offspring. In mammals, the sex of the offspring is determined by the sperm cell: a spermatozoon bearing a Y chromosome will lead to a male (XY) offspring, while one bearing an X chromosome will lead to a female (XX) offspring (the ovum always provides an X chromosome). Sperm cells were first observed by Anton van Leeuwenhoek in 1677.
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