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Keyword: chromosomes

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  • Netflix Edits ‘Bill Nye’ Episode to Remove Segment Saying Chromosomes Determine Gender

    05/03/2017 2:16:41 PM PDT · by ForYourChildren · 32 replies
    Washington Free Bacon ^ | 05/03/2017 | Alex Griswold
    When uploaded to Netflix, an episode of the educational children's show "Bill Nye the Science Guy" cut out a segment saying that chromosomes determine one's gender. In the original episode, titled "Probability," a young woman told viewers, "I'm a girl. Could have just as easily been a boy, though, because the probability of becoming a girl is always 1 in 2." "See, inside each of our cells are these things called chromosomes, and they control whether we become a boy or a girl, " the young woman continued. "See, there are only two possibilities: XX, a girl, or XY, a...
  • Scientists Discover the Secret to Keeping Cells Young

    04/30/2015 2:47:14 PM PDT · by Beave Meister · 7 replies ^ | 4/30/2015 | Alice Park
    Researchers say it may be possible to slow and even reverse aging by keeping DNA more stably packed together in our cells In a breakthrough discovery, scientists report that they have found the key to keeping cells young. In a study published Thursday in Science, an international team, led by Juan Carlos Izpisua Belmonte at the Salk Institute, studied the gene responsible for an accelerated aging disease known as Werner syndrome, or adult progeria, in which patients show signs of osteoporosis, grey hair and heart disease in very early adulthood. These patients are deficient in a gene responsible for copying...
  • Recent medical advances and Down syndrome: Two perspectives

    01/11/2014 9:47:48 AM PST · by NYer · 10 replies
    Catholic World Report ^ | January 10, 2014 | Catherine Harmon
    (Photo courtesy of the Norcia family) This week at CWR we’re featuring two articles on closely related topics: the spread of non-invasive, highly accurate prenatal testing for Down syndrome (and the expected increase in abortion of unborn babies diagnosed with Down syndrome) and recent advances in the search for improved therapies to treat—and possibly reverse the effects of—the chromosomal disorder. We think the two pieces—both interesting and worthwhile on their own, and particularly illuminating when read together—shed light on different aspects of the complicated subject of how individuals with Down syndrome are viewed and treated by our society today....
  • Anyone else find the "23andMe" advert creepy? (Vanity)

    08/21/2013 8:40:43 PM PDT · by RushIsMyTeddyBear · 33 replies
    I have seen this running today on FOX and I think it's creepy. So you get a 'testing kit' and send it off to a lab??? To find out about myself?
  • The Duck-Billed Platypus Gets Even More Confusing

    12/27/2012 9:35:55 AM PST · by lasereye · 51 replies
    Apologetics Press ^ | 2004 | Brad Harrub, Ph.D.
    The duck-billed platypus has always been a thorn in the side of evolutionists (see “The Flat-Footed, Beaver-Tailed, Duck-Billed Platypus” by Nathaniel Nelson). Many evolutionists would like to simply prune it off the evolutionary tree of life, having been forced to place it on a lone branch all to itself. But the thorn has just gotten much larger, and much harder to ignore. Aside from the fact that this mammal lays eggs and possesses features found only among birds and reptiles, researchers have now discovered that the platypus boasts not two sex chromosomes like most animals, but ten (see Grützner, et...
  • Previously Unknown Population Explosion of Human Species 40,000 Years Ago --Discovered

    10/31/2012 1:10:13 AM PDT · by LibWhacker · 25 replies
    Daily Galaxy ^ | 10/30/12
    DNA sequencing of 36 complete Y chromosomes has uncovered a previously unknown population explosion that occurred 40 to 50 thousand years ago, between the first expansion of modern humans out of Africa 60 to 70 thousand years ago and the Neolithic expansions of people in several parts of the world starting 10 thousand years ago. This is the first time researchers have used the information from large-scale DNA sequencing to create an accurate family tree of the Y chromosome, from which the inferences about human population history could be made. "We have always considered the expansion of humans out of...
  • Embryonic cloning experiment blasted by ethicists, scientists

    10/08/2011 10:11:25 AM PDT · by NYer · 4 replies
    cna ^ | October 8, 2011 | Marianne Medlin
    Human embryonic stem cells. Credit: Nissim Benvenisty, Courtesy Public Library of Science (CC BY 2.5) Denver, Colo., Oct 8, 2011 / 06:50 am (CNA/EWTN News).- A recent experiment cloning human embryos for potential stem cell use did little to advance a medical breakthrough and violated human life, Catholic experts said in reaction to the news.“The attitudes of the scientists involved,” said Fr. Thomas Berg, head of the Westchester Institute for Ethics and the Human Person, show a “profound disrespect for the goods inherent to natural procreation and a demeaning of human life.”In an experiment publicized Oct. 5 in the...
  • Confirmed: Non-Africans found to be part-Neanderthal

    07/18/2011 4:35:40 PM PDT · by redreno · 70 replies
    CBS News ^ | July 18, 2011 2:22 PM | CBS News
    Next time you're about to slam somebody for carrying on like a Neanderthal, think twice: You might be hitting close to home. A new study published in the Molecular Biology and Evolution reports that people of non-African heritage carry a chromosome which originates from Neanderthals, offering evidence that the two populations interbred at a certain point in history.
  • Genetic changes outside nuclear DNA suspected to trigger more than half of all cancers

    03/25/2009 11:03:27 PM PDT · by neverdem · 10 replies · 852+ views
    A buildup of chemical bonds on certain cancer-promoting genes, a process known as hypermethylation, is widely known to render cells cancerous by disrupting biological brakes on runaway growth. Now, Johns Hopkins scientists say the reverse process — demethylation — which wipes off those chemical bonds may also trigger more than half of all cancers. One potential consequence of the new research is that demethylating drugs now used to treat some cancers may actually cause new cancers as a side effect. "It's much too early to say for certain, but some patients could be at risk for additional primary tumors, and...
  • Chromosome rearrangements not as random as believed

    06/22/2008 3:02:05 AM PDT · by neverdem · 11 replies · 87+ views
    As the human genome gradually yields up its secrets, scientists are finding some genetic events, such as rearrangements in chromosomes, are less random than they had previously thought. Originating as structural weaknesses in unstable stretches of DNA, abnormal chromosomes may, rarely, result in a disabling genetic disease one or two generations later. A report in the Feb. 17 issue of Science by genetics researchers at The Children's Hospital of Philadelphia and the University of Pennsylvania analyzes genetic predisposition to the translocation t(11;22), a swapping of genetic material between chromosomes 11 and 22. They found an unexpectedly high frequency of new...
  • Lasting genetic legacy of environment (Epigenome).

    12/20/2007 2:20:13 PM PST · by Jedi Master Pikachu · 11 replies · 510+ views
    BBC ^ | Thursday, December 20, 2007. | Monise Durrani
    Environment can change the way our genes work Environmental factors such as stress and diet could be affecting the genes of future generations leading to increased rates of obesity, heart disease and diabetes.A study of people suffering post-traumatic stress disorder (PTSD) after the 9/11 attacks in New York made a striking discovery. The patients included mothers who were pregnant on 9/11 and found altered levels of the stress hormone cortisol in the blood of their babies. This effect was most pronounced for mothers who were in the third trimester of pregnancy suggesting events in the womb might be responsible....

    01/17/2004 11:49:25 AM PST · by · 55 replies · 2,292+ views
    E-Forensic Medicine ^ | Frederick T. Zugibe, M.S., M.D., Ph.D., FCAP, FACC, FAAFS
    Frederick T. Zugibe, M.S., M.D., Ph.D., FCAP,  FACC,  FAAFS      HOMECONTACT FORENSIC PATHOLOGY & MEDICINE Biography Publications News Public Health Psychotropic  Drugs Study   CRUCIFIXION and SHROUD STUDIES Crucifixion & Shroud Involvement Barbet Revisited Man of the Shroud was Washed Texas Lecture Paris  Lecture Turin 2000 Lecture MISCELLANEOUS: The Code for Human Life                                                          THE CODE FOR HUMAN LIFE  [Reprinted from the Catholic Answer 9: 40-45,1996]     A fertilized human egg at the moment of Conception, is the opinion of the creator that a human life at that instant, must begin.... F. Zugibe    ...
  • Y Chromosomes Reveal Founding Father (Giocangga)

    10/25/2005 11:02:09 AM PDT · by blam · 27 replies · 1,492+ views
    Nature ^ | 10-24-2005 | Charlotte Shubert
    Published online: 24 October 2005Charlotte SchubertY chromosomes reveal founding fatherDid conquest and concubines spread one man's genes across Asia? The Manchu warriors took control of China in 1644. © Punchstock About 1.5 million men in northern China and Mongolia may be descended from a single man, according to a study based on Y chromosome genetics1. Historical records suggest that this man may be Giocangga, who lived in the mid-1500s and whose grandson founded the Qing dynasty, which ruled China from 1644 to 1912. The analysis is similar to a controversial study in 2003, which suggested that approximately 16 million men...
  • Scientists Analyze Chromosomes 2 and 4: Discover Largest "Gene Deserts"

    04/13/2005 6:20:23 PM PDT · by PatrickHenry · 397 replies · 5,407+ views
    A detailed analysis of chromosomes 2 and 4 has detected the largest "gene deserts" known in the human genome and uncovered more evidence that human chromosome 2 arose from the fusion of two ancestral ape chromosomes, researchers supported by the National Human Genome Research Institute (NHGRI), part of the National Institutes of Health (NIH), reported today. In a study published in the April 7 issue of the journal Nature, a multi-institution team, led by [load of names deleted, but available in the original article]. "This analysis is an impressive achievement that will deepen our understanding of the human genome and...
  • Chromosomal Disharmony Leads to the Formation of a New Species

    02/26/2005 3:20:33 PM PST · by furball4paws · 96 replies · 1,481+ views
    In 1927, Karpechenko made a hybrid of the common radish, Raphanus sativus, and cabbage, Brassica oleracea. Each parent has a diploid chromosome number of 2N=18. The hybrid also had 18 chromosomes, but because normal sperm and eggs could not be formed, the hybrid was sterile, as is common in such cases. However, some of the "sterile" hybrids produced a few viable seeds. These seeds were produced when the chromosome number spontaneously doubled. The doubling permitted the pairing of partner chromosomes and the formation of gametes with 1N=18. Karpechenko witnessed the birth of a new species in the passage of only...
  • Gene Arrangement Makes Some Europeans More Fertile

    01/16/2005 10:00:45 PM PST · by anymouse · 10 replies · 513+ views
    Reuters ^ | Jan 16, 2005
    Researchers working in Iceland said on Sunday they identified a genetic pattern that makes some Europeans more fertile. The genetic pattern, known as an inversion, is a stretch of the DNA code that runs backwards in people who carry it. Usually, such rearrangements of a chromosome are harmful to carriers. But this one causes carriers to have more children each generation -- giving them what is known as a selective advantage, the researchers reported. The finding, published in Monday's issue of the journal Nature Genetics, opens some interesting questions about human evolution, the team at Iceland's DeCODE Genetics said. "We...
  • Triumphalism in Science (re The Triumph of Sociobiology by John Alcock)

    11/25/2004 6:04:55 PM PST · by SunkenCiv · 6 replies · 528+ views
    American Scientist ^ | September-October 2001 | reviewed by Jon Beckwith
    [Alcock] uncritically accepts the conclusions from highly contested studies of the genetics of human behavior, such as the Minnesota Study of Twins Reared Apart of Thomas J. Bouchard and his colleagues. In fact, the field of human behavior genetics is in a crisis stage, as the great hope of finding behavioral genes with the new DNA technologies has disappointed. Many of the concerns about this field of research parallel those offered by the critics of sociobiology -- that researchers have paid too little attention to nongenetic factors in collecting and analyzing their data. Alcock is at his worst when describing...
  • Abraham's Chromosomes?

    10/03/2004 6:45:44 PM PDT · by yonif · 50 replies · 2,764+ views
    AISH ^ | Sept. 2004 | Rabbi Yaakov Kleiman
    According to the written and oral traditions of the three major religions of the Western world, Abraham was a real person who lived in the Middle East nearly 4,000 years ago. According to each respective tradition, he was the first of the Fathers of the Jewish people, fathered the Arab nations and Islam, and laid the conceptual basis for Christianity. Tradition relates that he may have influenced early Eastern religion, as well.Abraham is the first to be called a Hebrew - Ivri -- one who passes over from one side to the other. He received this title because he actually...
  • How likely is human extinction?

    04/14/2004 6:15:04 AM PDT · by Momaw Nadon · 519 replies · 1,986+ views
    Mail & Guardian Online ^ | Tuesday, April 13, 2004 | Kate Ravilious
    Every species seems to come and go. Some last longer than others, but nothing lasts forever. Humans are a relatively recent phenomenon, jumping out of trees and striding across the land around 200 000 years ago. Will we persist for many millions of years to come, or are we headed for an evolutionary makeover, or even extinction? According to Reinhard Stindl, of the Institute of Medical Biology in Vienna, the answer to this question could lie at the tips of our chromosomes. In a controversial new theory he suggests that all eukaryotic species (everything except bacteria and algae) have an...
  • Lifting the Veils of Autism, One by One by One

    02/23/2004 7:15:41 PM PST · by neverdem · 33 replies · 755+ views
    NY Times ^ | February 24, 2004 | ERICA GOODE
    He is blond and 3 years old, 33 pounds of compressed energy wrapped in OshKosh overalls. In an evaluation room at Yale's Child Study Center, he ignores Big Bird, pauses to watch the bubbles that a social worker blows through a wand, jumps up and down. But it is the two-way mirror that fascinates him, drawing him back to stare into the glass, to touch it, to lick it with his tongue. At 17 months, after several ear infections and a bout of the flu, the toddler's budding language skills began to deteriorate, his parents tell the evaluators. In the...