During embryonic development, two different cascades of genetic signals determine whether the embryo's primordial gonad will become testes or ovaries, and thus whether the embryo will develop into a male or a female. Disruptions ...
Molecular & Computational biology
Jan 4, 2023
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64
Sperm swim, lung cells sweep mucus away, and the cells in the female Fallopian tube move eggs from the ovary to the uterus. Underlying these phenomena are flagella – slender, hair-like structures extending from the surface ...
Cell & Microbiology
Aug 13, 2012
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0
Millions of times on a spring day there is a dramatic biomolecular tango where the flower, rather than adorning a dancer's teeth, is the performer. In this dance, the female pistil leads, the male pollen tubes follow, and ...
Plants & Animals
Jun 20, 2013
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0
(Phys.org)—Researchers at the University of Glasgow have discovered the behaviour and metabolism of young trout is affected by where the egg they hatched from rested in the ovaries of their mother.
Plants & Animals
Nov 28, 2012
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0
Nutrition and metabolism are closely linked with reproductive health. Several reproductive disorders including polycystic ovary syndrome, amenorrhea, and ovarian cancer have been linked to malnutrition, diabetes, and obesity. ...
Cell & Microbiology
Mar 19, 2015
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22
(Phys.org) —Wolbachia are intracellular bacteria that infect invertebrates at pandemic levels, including insects that cause such devastating diseases as Dengue fever, West Nile virus, and malaria. While Wolbachia-based ...
Cell & Microbiology
Jul 4, 2013
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0
Mutations that disrupt development of germ cells cause infertility or birth defects. Mutations that cause female infertility in humans, such as mutations in the gene BMP15, also cause infertility in zebrafish. However, female ...
Cell & Microbiology
Jan 22, 2024
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45
Begonia is the sixth largest genus of angiosperms. Yunnan has 117 species of Begonia among the 250 species from China. Among the currently known Begonias in China, only Begonia yui has paired bracteoles below the ovary.
Plants & Animals
Jul 13, 2022
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7
Nearly half of teenagers are worried about having children and many lack knowledge about their reproductive health, find two new studies by University College London researchers.
Education
Feb 12, 2024
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1
Reproduction is highly dependent on diet and the ability to use nutrients to grow and generate energy. This is clearly seen in women, who must provide all the nutritional building blocks required to support a growing embryo. ...
Cell & Microbiology
Jan 28, 2016
0
20
