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The Sexes: New Insights into the X and Y Chromosomes.
The distance between Mars and Venus might be closer than previously thought
The cry of "It's, a boy" or "It's a girl" marks the newborn child s first and most basic label of personal identity. But researchers understanding of sex is undergoing profound and surprising changes due to new insights gained from sociology, biology, and medicine. The differences between females and males, once believed black and white--or pink and blue--now appear like a blurred rainbow of confusion. Researchers are learning, for example, that the Y chromosome has degenerated over the centuries. They have found that, in mice, some genes involved in early stages of sperm production are ...
- Many Genes For Early Male Sperm Production Reside On The X Chromosome.
- Newspaper article from: Genomics & Genetics Weekly April 20, 2001 700+ words
...that the X chromosome has a specialty in sperm production, much like the Y chromosome does," says...due to low sperm production may be an X...linked to the Y chromosome and 10 were...X and the Y chromosomes, adds Page...
- STUDIES REVEAL TRIGGERS FOR SPERM PRODUCTION.(L.A. LIFE)
- Newspaper article from: Daily News (Los Angeles, CA) June 10, 1996 700+ words
...study of mice, cells that trigger sperm production, called stem cells, were frozen...whom the toxic exposure can impair sperm production. Freezing these immature sperm cells...into another individual and induce sperm production, Brinster explained. ``Freezing...
- Research eyes vasectomy impact on sperm production.
- Magazine article from: Contraceptive Technology Update July 1, 2004 700+ words
Research eyes vasectomy impact on sperm production While family planning clinicians counsel...may be a significant reduction in sperm production, which could lower the chances of...reversal increases.sup.6; reduced sperm production could be a contributing factor, Pollack...
- Testosterone supplementation and sperm production.(Your Comments)
- Magazine article from: Clinical Advisor Chabon, Suzanne September 1, 2009 700+ words
...when men need testosterone" (July 2009) neglected to mention that exogenous testosterone supplementation will depress sperm production and should not be given to men who are trying to father a pregnancy.--SUZANNE CHABON, FNP, Greensboro, N. C. Ms...
- BOULE coding sequence mutations do not account for lacking sperm production.
- Newspaper article from: Science Letter November 23, 2004 700+ words
...2004 NOV 23 - (NewsRx.com & NewsRx.net) -- BOULE coding sequence mutations do not account for lacking sperm production. "The BOULE gene is a member of the 'deleted in azoospermia' DAZ family. As in flies and worms, disruption...
- Genomic imprinting disease could affect sperm production.
- Newspaper article from: Genomics & Genetics Weekly June 11, 2004 700+ words
2004 JUN 11 - (NewsRx.com & NewsRx.net) -- A new study published in the May 21 issue of The Lancet shows a potential link between low sperm counts and genomic imprinting disease and that this link could raise the risk of transmitting imprinted defects after assisted reproductive technology.
- Study shows importance of stem cells in sperm production.
- Newspaper article from: Drug Week June 11, 2004 700+ words
2004 JUN 11 - (NewsRx.com & NewsRx.net) -- Researchers from the University of Washington School of Medicine and the Memorial Sloan-Kettering Cancer Center have discovered a protein in stem cells that allows for cell renewal. Stem cells in the ovaries and testes replace themselves and allow
- Men Find Yet Another Way To Compete.(research on human sperm production)
- Magazine article from: Popular Science Steiner, Siri September 1, 2005 700+ words
Byline: Siri Steiner Animals have developed some fascinating tactics to ensure that their genes survive to the next generation: impressive color displays, the best pheromone smell, sperm that induces the female to ovulate right after mating. And humans apparently aren't above such biochemical
