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Keyword: humanevolution

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  • Trove of skulls...missing link in human evolution: early Neanderthals used teeth as 'third hand'

    06/19/2014 7:50:23 PM PDT · by Pharmboy · 31 replies
    Daily Mail ^ | 19 June 2014 | ELLIE ZOLFAGHARIFARD
    Full headline: Treasure trove of skulls reveal missing link in human evolution: Facial bones suggest early Neanderthals used their teeth as a 'third hand' The 17 skulls belong to a single population of a fossil hominin species This is the biggest collection of human fossils ever found on one site They shed light on pre-human evolution from around 400,000 years ago Skulls showed Neanderthal features in face and teeth but not elsewhere These features evolved due to eating and perhaps for use as a 'third hand' Study adds to theories that the Neanderthals developed their characteristic looks slowly, and intermittently,...
  • Is this the first man with blue eyes?

    01/26/2014 9:44:28 PM PST · by Pharmboy · 41 replies
    Daily Mail ^ | 1-26-14 | DAILY MAIL REPORTER
    Full headline: Is this the first man with blue eyes? Experts astonished that 7,000-year-old DNA reveals caveman with African and European genes Remains discovered 5000ft up mountains of north-west Spain Findings suggest racial transformation happened later than thought Man, dubbed La Brana 1, also shows similarity to Scandinavian DNA His piercing blue eyes are in striking contrast to his dark complexion and hair. It means this 7,000-year-old caveman holds the clue to man’s genetic evolution. His remains were discovered 5,000ft up in the mountains of north-west Spain in 2006. Experts were astonished to find the ancient hunter-gatherer, given the name...
  • Study suggests inbreeding shaped course of early human evolution

    11/29/2013 7:51:37 AM PST · by Pharmboy · 64 replies
    UPI ^ | Nov. 28, 2013 | Anon.
    CAMBRIDGE, Mass., Nov. 28 (UPI) -- Humans lived for thousands of years in small, isolated populations and resulting inbreeding shaped the course of human evolution, a U.S. researcher says. Research suggests the severe inbreeding may have created many health problems and the small populations were likely a barrier to the development of complex culture and technologies, reported Thursday. David Reich of Harvard Medical School in Boston -- who has sequenced the genome of Neanderthals and that of another extinct human, the Denisovans -- said both species were severely inbred due to small populations. "Archaic populations had low genetic diversity,...
  • Neanderthals talked like us half a million years ago and could even have shaped today's language

    07/10/2013 9:30:34 AM PDT · by Pharmboy · 45 replies
    Daily Mail ^ | 10 July 2013 | SARAH GRIFFITHS
    [Note: headline edited slightly in order to fit] Origins of modern language are ten times older than thought and could date back half a million years, according to Dutch researchers It contradicts the popular idea that our modern language began with a sudden emergence of modernity presumably due to one or a few genetic mutations that gave rise to language The scientists claim that far from being slow brutes, Neanderthals' cognitive capacities and culture were comparable to ours Dutch researchers have claimed that our modern language can be traced back to stone age man - ten times older than previously...
  • Human evolution theory challenged

    06/07/2013 6:06:16 AM PDT · by Pharmboy · 26 replies ^ | 6-7-13 | Unknown
    VideoHubei, China - Chinese scientists have discovered a fossil that they claim is the earliest known ancestor of humans. The find has challenged the long-held belief that apes began their evolution in Africa. The Archicebus Achilles was discovered in 2002 on a lake bed in China's Hubei province, but took more than 10 years of analysis for scientists to declare it as the world's oldest known primate fossil. The scientists contend that the 55-million-year-old fossil, which looks a bit like a mouse with monkey-like feet, is the world's oldest known ape-like creature. "Now after we discovered this fossil, we can...
  • Revolutionizing the “Out of Africa” Story

    04/01/2013 5:23:50 AM PDT · by Pharmboy · 14 replies
    Genetic Engineering & Biotechnology News ^ | Apr 1, 2013 | Alan R. Templeton, Ph.D.
    The discovery of the structure of DNA and the subsequent developments in genetics and genomics have had a great impact on all of the biological sciences, including human evolution. Our ideas about human evolution 60 years ago came primarily from the fossil and archaeological records. These fields revealed that the last two million years were a dynamic period of our evolutionary history. The human lineage two million years ago was a population with ape-sized brains limited to sub-Saharan Africa. The human lineage expanded into Eurasia around 1.85 million years ago, and our brain size increased throughout the Pleistocene. Anatomically modern...
  • Aches and Pains: You Can Thank Evolution for Them

    02/17/2013 11:30:11 AM PST · by EveningStar · 8 replies
    LiveScience ^ | February 15, 2013 | Charles Choi
    Bad backs, dangerous childbirths, sore feet and wisdom teeth pains are among the many ailments humans face from evolution, researchers say. In an evolutionary sense, humans are by far the most successful primates on the planet, with a world population close to 7 billion. Humanity owes this success to a number of well-known adaptations, such as large, complex brains and walking upright on two feet. However, there are downsides to these advances as well.
  • East Asian Physical Traits Linked to 35,000-Year-Old Mutation

    02/15/2013 1:33:40 AM PST · by Pharmboy · 47 replies
    NY Times ^ | February 14, 2013 | NICHOLAS WADE
    Gaining a deep insight into human evolution, researchers have identified a mutation in a critical human gene as the source of several distinctive traits that make East Asians different from other races. Researchers have identified a mutation in a gene that confers several distinct traits to East Asians, including thicker hair. The traits — thicker hair shafts, more sweat glands, characteristically identified teeth and smaller breasts — are the result of a gene mutation that occurred about 35,000 years ago, the researchers have concluded. snip The first of those sites to be studied contains the gene known as EDAR. Africans...
  • How our DNA differs from that of Denisovans, our extinct cousins

    09/01/2012 5:42:46 AM PDT · by Pharmboy · 49 replies
    LA Times ^ | 9-1-12 | Rosie Mestel
    Scientists are beginning to analyze the DNA differences between modern humans and our extinct archaic relatives, the Denisovans. (National Human Genome Research Institute) Genome of ancient Denisovans may help clarify human evolution Scientists recently reported they had pieced together a high-quality sequence of an archaic human relative, the Denisovans. Among other things, the researchers took a close look at the ways in which we differ from these people, who were named after the place where their traces were discovered: Denisova Cave in the Altai Mountains of Siberia....snip It's "fascinating" to see the DNA changes that spread to most or all...

    08/17/2012 9:37:26 AM PDT · by Pharmboy · 151 replies
    Discovery News ^ | Aug 16, 2012 | Anon
    Recent research strikes a blow to the theory that humans and Neanderthals interbred. THE GIST Studies over the last two years suggest that Neanderthals vanished more than 30,000 years ago. This would mean that early humans and Neanderthals could not have interbred. enlarge Over the last two years, several studies have suggested that Homo sapiens got it on with Neanderthals, an hominid who lived in parts of Europe, Central Asia and the Middle East for up to 300,000 years but vanished more than 30,000 years ago. The evidence for this comes from fossil DNA, which shows that on average Eurasians...
  • Gene Regulation And The Difference Between Human Beings And Chimpanzees

    10/27/2011 5:49:24 AM PDT · by Pharmboy · 23 replies
    Scince 2.0 ^ | October 26th 2011 | Gunnar De Winter
    When the DNA sequences of Homo sapiens and Pan troglodytes were sequenced, the difference between the sequences of coding genes was smaller than expected based on the phenotypic differences between both species. If not the coding genes, then what is responsible for these dissimilarities? In the words of the authors of a new study that took a look at this question: Although humans and chimpanzees have accumulated significant differences in a number of phenotypic traits since diverging from a common ancestor about six to eight million years ago, their genomes are more than 98.5% identical at protein-coding loci. Since this...
  • Neanderthals may have interbred with humans

    04/22/2010 5:12:55 AM PDT · by Pharmboy · 79 replies · 1,716+ views
    Nature News ^ | 4-20-10 | Rex Dalton
    Genetic data points to ancient liaisons between species. Archaic humans such as Neanderthals may be gone but they're not forgotten — at least not in the human genome. A genetic analysis of nearly 2,000 people from around the world indicates that such extinct species interbred with the ancestors of modern humans twice, leaving their genes within the DNA of people today. The discovery, presented at the annual meeting of the American Association of Physical Anthropologists in Albuquerque, New Mexico, on 17 April, adds important new details to the evolutionary history of the human species. And it may help explain the...
  • Genome Study Provides a Census of Early Humans

    01/19/2010 4:21:03 AM PST · by Pharmboy · 41 replies · 1,017+ views
    NY Times (Science Times) ^ | January 18, 2010 | NICHOLAS WADE
    From the composition of just two human genomes, geneticists have computed the size of the human population 1.2 million years ago from which everyone in the world is descended. They put the number at 18,500 people, but this refers only to breeding individuals, the “effective” population. The actual population would have been about three times as large, or 55,500. Comparable estimates for other primates then are 21,000 for chimpanzees and 25,000 for gorillas. In biological terms, it seems, humans were not a very successful species, and the strategy of investing in larger brains than those of their fellow apes had...
  • Oldest known human ancestor rewrites evolution theories

    10/01/2009 12:18:15 PM PDT · by Pharmboy · 85 replies · 2,169+ views ^ | October 1, 2009 | Ken Meaney
    Probable life appearance in anterior view of Ardipithecus ramidus ("Ardi"), ARA-VP 6/500.Photograph by: Handout, Illustrations 2009, J.H. Matternes An international team of scientists unveiled Thursday the results of 15 years of study of one of the oldest known human ancestors, Ardipithecus ramidus, which they say overturns much of what we know about human evolution. And surprisingly, it's also rewriting the story of our relation to gorillas and chimpanzees, our closest living relatives, and their development as well. Yohannes Haile-Selassie, one of the authors involved in the research and the man who discovered the first pieces of the most complete...
  • Is the human brain still evolving?

    07/28/2009 11:14:56 PM PDT · by ErnstStavroBlofeld · 34 replies · 721+ views
    How Stuff Works ^ | unknown | Molly Edmonds
    When we daydream about the future, we tend to focus on the fabulous belongings we're going to have. Jet packs, flying cars, weapons to kill aliens, cell phones that make today's sleek models look clunky -- you name it, we're going to have it. We don't tend to focus, however, on who we'll be in the future. Most of us probably picture ourselves exactly the same, though maybe thinner, as surely we'll all have robot personal trainers by then. While we see the world's technology evolving to meet our needs, we may not think about how we ourselves might be...
  • News to Note, May 23, 2009: A weekly feature examining news from the biblical viewpoint

    05/24/2009 1:48:11 PM PDT · by GodGunsGuts · 412+ views
    AiG ^ | May 23, 2009
    News to Note, May 23, 2009: A weekly feature examining news from the biblical viewpoint (READ THE FOLLOWING STORIES AND MUCH MORE BY CLICKING THE EXCERPT LINK AT BOTTOM) 1. ICR: “‘Missing Link’ Ida Is Just Media Hype”The news media has been awash this week in hype over an alleged missing link fossil nicknamed Ida. As it turns out, the fossil wasn’t fraudulent, but the hype definitely was. 2. The Telegraph: “New ‘Super Rats’ Evolve Resistance to Poison”Is this “super rat” an example of evolution in action, or the result of an information-reducing mutation? 3. Gallup: “More Americans ‘Pro-Life’ than...
  • News to Note: A weekly feature examining news from the biblical viewpoint (SEE FIRST STORY!)

    04/18/2009 11:57:10 AM PDT · by GodGunsGuts · 19 replies · 1,082+ views
    AiG ^ | April 18, 2009
    Read these stories and much more by clicking the excerpt link below: 1. Wall Street Journal: “Hong Kong Christens an Ark of Biblical Proportions” 2. ScienceNOW: “Our Ancestors Were No Swingers” 3. National Geographic News: “First Tool Users Were Sea Scorpions?” 4. LiveScience: “Three Subgroups of Neanderthals Identified” 5. BBC News: “Stem Cells ‘Can Treat Diabetes’” (adult stem cells, that is...) 6. New Scientist: “Praying to God Is Like Talking to a Friend” And much much more at...
  • News to Note: A weekly feature examining news from the biblical viewpoint

    04/11/2009 8:33:17 PM PDT · by GodGunsGuts · 3 replies · 433+ views
    AiG ^ | April 11, 2009
    In this week's installment: 1. PhysOrg: “In Search of the Original Flapper[—]New Theory on Evolution of Flight” Can evolutionists rescue their own model of bird origins? 2. ScienceNOW: “Oldest Stone Blades Uncovered” Stone blades from more than 500,000 years ago: the work of an alleged human ancestor or someone playing Survivorman? 3. BBC News: “Jews Celebrate ‘Dawn of Creation’” People around the world celebrated a recent, literal creation this week. 4. The Local: “Creationists Taking on Evolution in Germany” In February we noted a Der Spiegel article on European creationists (which followed a Guardian article that covered British creationists). Now...
  • Natural Selection Studies Based on Bad Statistics (Can the Darwin Party get anything right?)

    03/31/2009 5:23:48 PM PDT · by GodGunsGuts · 37 replies · 744+ views
    CEH ^ | March 30, 2009
    Natural Selection Studies Based on Bad Statistics March 30, 2009 — Hundreds of studies claiming to show natural selection may be wrong, say scientists from Penn State and Japan.  PhysOrg reported today that “several statistical methods commonly used by biologists to detect natural selection at the molecular level tend to produce incorrect results.”  Many studies of human evolution have relied on these flawed methods.  If the methods were wrong, the conclusions are unreliable.  “Of course, we would never say that natural selection is not happening, but we are saying that these statistical methods can lead scientists to make erroneous inferences,”...
  • Study moves chimp-human split to 4 million years ago

    02/24/2007 4:59:17 AM PST · by Pharmboy · 49 replies · 847+ views
    Reuters via Yahoo! ^ | Fri Feb 23, 2007 | Maggie Fox
    A male chimpanzee feeds in Kibale National Park tropical rain forest, 354km southeast of Uganda's capital Kampala, December 2, 2006. A new study, certain to be controversial, maintains that chimpanzees and humans split from a common ancestor just 4 million years ago -- a much shorter time than current estimates of 5 million to 7 million years ago. (James Akena/Reuters) Chimpanzees and humans split from a common ancestor just 4 million years ago -- a much shorter time than current estimates of 5 million to 7 million years ago, according to a study published on Friday. The researchers compared...
  • DNA from Neanderthal leg shows distant split

    11/15/2006 2:09:22 PM PST · by Pharmboy · 57 replies · 1,670+ views
    Reuters ^ | Wed Nov 15, 2006 | Maggie Fox
    An undated photograph shows the inside of the Vindija cave in Croatia, where a leg bone from a male Neanderthal was found and and used to sequence DNA by researchers who on Wednesdauy said it shows that Neanderthals are truly distant relatives of modern humans who interbred rarely, if at all, with our own immediate ancestors. (Johannes Krause- Max- Planck Institute of Evolutionary Anthropology/Handout/Reuters) Researchers have sequenced DNA from the leg bone of a Neanderthal man who died 38,000 years ago and said on Wednesday it shows the Neanderthals are truly distant relatives of modern humans who interbred rarely,...
  • Could our big brains come from Neanderthals?

    11/07/2006 7:27:55 PM PST · by Pharmboy · 54 replies · 1,451+ views
    Reuters via Yahoo ^ | Tue Nov 7, 2006 | Anon
    Neanderthals may have given the modern humans who replaced them a priceless gift -- a gene that helped them develop superior brains, U.S. researchers reported on Tuesday. And the only way they could have provided that gift would have been by interbreeding, the team at the Howard Hughes Medical Institute and the University of Chicago said. Their study, published in the Proceedings of the National Academy of Sciences, provides indirect evidence that modern Homo sapiens and so-called Neanderthals interbred at some point when they lived side by side in Europe. "Finding evidence of mixing is not all that surprising. But...
  • Human Evolution: The More the Merrier

    09/03/2006 12:47:12 AM PDT · by neverdem · 32 replies · 766+ views
    ScienceNOW Daily News ^ | 31 August 2006 | Elizabeth Pennisi
    Researchers peering into the DNA toolbox have found yet another instrument of evolution. Simply replicating a piece of a particular gene--from one copy in mice to more than 200 in humans--may have prompted some of the changes in the brain that define us as human, according to a new study. Evolution occurs when genes mutate, or when they alter where, when, and how strongly they are active. In addition, hiccups in DNA replication can foster change by causing some parts of genes to be repeated as they are copied. Twin genes or duplicated regulatory regions result, and although one in...
  • Debate on Little Human Fossil Enters Major Scientific Forum

    05/19/2006 3:09:39 AM PDT · by Pharmboy · 25 replies · 878+ views
    NY Times ^ | May 19, 2006 | JOHN NOBLE WILFORD
    Ira Block/National GeographicSome scientists say this skull, smaller than those of modern humans, is from a newfound species. Not all scientists agree that the 18,000-year-old "little people" fossils found on the Indonesian island of Flores should be designated an extinct human-related species. Some expressed their opposition in news interviews and informal symposiums, but papers arguing their case were rejected by major journals. snip... In today's issue of the journal Science, researchers led by Robert D. Martin of the Field Museum in Chicago present evidence they say supports their main argument, that the skull in question is not that of...
  • A Good Neanderthal Was Hard to Find

    02/26/2006 3:25:01 AM PST · by Pharmboy · 251 replies · 4,010+ views
    NY Times:Week in Review ^ | February 26, 2006 | JOHN NOBLE WILFORD
    Maybe they just didn't have time to get to know each other. The question of what Neanderthals and Homo sapiens might have done on cold nights in their caves, if they happened to get together and the fire burned down to embers, has intrigued scientists since the 19th century, when the existence of Neanderthals was discovered. A correction in the way prehistoric time is measured using radiocarbon dating, described last week in the journal Nature, doesn't answer the enduring question, but it might at least help explain why no DNA evidence of interbreeding has been found: the two species spent...
  • Scientists Find Gene That Controls Type of Earwax in People

    01/30/2006 3:02:26 AM PST · by Pharmboy · 66 replies · 1,922+ views
    NY Times ^ | January 30, 2006 | NICHOLAS WADE
    Earwax may not play a prominent part in human history but at least a small role for it has now been found by a team of Japanese researchers. Earwax comes in two types, wet and dry. The wet form predominates in Africa and Europe, where 97 percent or more of people have it, and the dry form among East Asians. The populations of South and Central Asia are roughly half and half. By comparing the DNA of Japanese with each type, the researchers were able to identify the gene that controls which type a person has, they report in today's...
  • Key Brain Regulatory Gene Shows Evolution In Humans

    12/14/2005 6:26:00 AM PST · by Dichroic · 52 replies · 1,084+ views
    BioresearchOnline ^ | 12/13/05 | Duke University
    Durham, NC - Researchers have discovered the first brain regulatory gene that shows clear evidence of evolution from lower primates to humans. They said the evolution of humans might well have depended in part on hyperactivation of the gene, called prodynorphin (PDYN), that plays critical roles in regulating perception, behavior and memory. They reported that, compared to lower primates, humans possess a distinctive variant in a regulatory segment of the prodynorphin gene, which is a precursor molecule for a range of regulatory proteins called "neuropeptides." This variant increases the amount of prodynorphin produced in the brain. While the researchers do...
  • DNA Clues to Our Kind

    12/01/2005 12:06:41 PM PST · by furball4paws · 12 replies · 519+ views
    ScienceNews ^ | November 26, 2005 | B. Bower
    This article is for suscribers only. If you suscribe go here: If you don't here is an abstract that the article is based on: The work studies the endorphin, prodynorphin in Chimps and Humans. It purports to show that "This is the first documented instance of a nueral gene that has had its regulation shaped by natural selection during human origins" (Matthew Hahn, U. Indiana). Human generally contain 2-4 copies of the regulatory sequence in contrast to one copy for chimps, gorillas, orangutans, baboons and macaques. The investigators contend that changes in the prodynorphin regulatory sequence must have...
  • Grannies gave evolutionary boost

    07/11/2004 1:24:20 PM PDT · by beavus · 17 replies · 376+ views
    BBC News World Edition ^ | 7/9/04 | Dr David Whitehouse
    Researchers at the Universities of Michigan and California looked at the ratio of older and younger adult teeth found at sites up to 100,000 years old. Finding more older teeth in the Upper Palaeolithic suggests the grandparent role - being on hand to help out more - became more common at that time. The research is in the Proceedings of the US National Academy of Sciences. Big advantage After studying more than 750 fossilised teeth anthropologists Rachel Caspari and Sang-Hee Lee noticed they were finding more specimens from older adults in more recent sites. Modern humans were older and wiser...
  • Hard-Wired for Prejudice? Experts Examine Human Response to Outsiders

    04/20/2004 4:39:28 AM PDT · by Pharmboy · 32 replies · 337+ views
    NY Times ^ | April 20, 2004 | NANCY WARTIK
    It's only a short step from feeling angry to feeling angry at someone, especially if that person is of a different social group, sex or ethnicity. At least that is what psychologists who are investigating the link between emotions and prejudice are finding. In a study that measured how emotional states affected views of outsiders, the researchers, from Northeastern University and the University of Massachusetts at Amherst, found that anger increased the likelihood of a negative reaction to members of a different group and that sadness or a neutral emotion did not. The study will appear in the May issue...
  • Another Branch of Human Ancestors Reported

    03/05/2004 3:30:34 AM PST · by Pharmboy · 22 replies · 471+ views
    NY Times ^ | March 5, 2004 | JOHN NOBLE WILFORD
    Another species has been added to the family tree of early human ancestors — and to controversies over how straight or tangled were the branches of that tree. Long before Homo erectus, Australopithecus afarensis (Lucy, more than three million years ago) and several other distant kin, scientists are reporting today, there lived a primitive hominid species in what is now Ethiopia about 5.5 million to 5.8 million years ago. That would make the newly recognizied species one of the earliest known human ancestors, perhaps one of the first to emerge after the chimpanzee and human lineages diverged from a common...
  • Why Humans and Their Fur Parted Ways

    08/19/2003 5:41:06 AM PDT · by Pharmboy · 142 replies · 32,635+ views
    The New York Times (Science Times) ^ | August 19, 2003 | NICHOLAS WADE
    Illustration by Michael Rothman Before An Australopithecus, sporting full-bodied fur about four million years ago. After An archaic human walked fur-free about 1.2 million years ago, carrying fire on the savanna ONE of the most distinctive evolutionary changes as humans parted company from their fellow apes was their loss of body hair. But why and when human body hair disappeared, together with the matter of when people first started to wear clothes, are questions that have long lain beyond the reach of archaeology and paleontology. Ingenious solutions to both issues have now been proposed, independently, by two research groups analyzing...
  • Debate Over a Skull [NYT Letter to Ed.]

    06/22/2003 5:01:21 AM PDT · by Pharmboy · 8 replies · 275+ views
    NY Times: Letters ^ | 6-22-03 | C. LORING BRACE
    To the Editor: "The Beginning of Modern Humans" (editorial, June 15) states that a newly discovered Ethiopian skull more than 150,000 years old is "recognizably modern to paleoanthropologists but not to most of the rest of us." It does not look recognizably modern to this paleoanthropologist, and it is a much less probable candidate for being the ancestor of the modern European human than the European Neanderthal is. I have superimposed the outlines of the crania being compared. Statistical analysis of a battery of measurements shows that the European Neanderthal is more closely related to modern Europeans than to anyone...
  • Origin Of Bipedalism Closely Tied To Environmental Changes

    05/29/2002 2:11:46 PM PDT · by Salman · 117 replies · 3,265+ views
    Space Daily ^ | 05-01-2002 | staff writer at Space Daily
    Origin Of Bipedalism Closely Tied To Environmental Changes Champaign - May 01, 2002 During the past 100 years, scientists have tossed around a great many hypotheses about the evolutionary route to bipedalism, to what inspired our prehuman ancestors to stand up straight and amble off on two feet. Now, after an extensive study of evolutionary, anatomical and fossil evidence, a team of paleoanthropologists has narrowed down the number of tenable hypotheses to explain bipedalism and our prehuman ancestors' method of navigating their world before they began walking upright. The hypothesis they found the most support for regarding the origin of...
  • Scientists sort the chimps from the men

    04/11/2002 3:37:12 PM PDT · by Ahban · 25 replies · 681+ views
    Science ^ | 11 April 2002 | Helen Phillips
    The World's No.1 Science & Technology News Service Scientists sort the chimps from the men 19:00 11 April 02 news service A team of molecular biologists have taken a step towards defining what makes us human. It is not so much our differing gene sequences that distinguish us from our primate cousins, but how active those genes are, the team has discovered. Chimp and human genomes vary by only 1.3 per cent and only a tiny fraction of this actually affects genes. The new research shows how variation in the amount of product of a gene may be as...