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  • Is it possible to alter a persons feeling or thoughts? See details...?

    One of my friend is afraid that someone would influence/change his feeling(vision/hearing etc) or even his mind sometimes. For example, one day he got something strange into his eyes, and he doubt if some material could cause illusion or hallucination. For another instance, one day some suspecious men walk by him, then he feel itch on his eye, he swipe his itch eye and found something like a dead insect on his hand. He doubt if it s just a coincidence, or it s something those people designed to put to his eye. Many people think he has mental problem, but I know his story/history and I agree he do have a valid reason to worry, I just cannot share it here. My question is: Is it technically possible to influence or even emulate a person s feeling or mind without installing heavy devices on him, just do it secretly? Sorry for my non-native English.
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  • Why does blood come out of the mouth when someone is shot or stabbed in the chest?

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  • Women would it be a better world?

    Do you think it would have been so much peaceful and a calm safe secure world for us women if there were no men ever? No men would mean more independence, no risk of sexual assault/rape/gawking , we would be able to wear whatever or even be nude , walk around freely even late at night.
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  • Do black people have equator privilege ?

    since they are genetically biased towards living along the equator of the earth without their skin burning
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  • Could a human act as a surrogate and carry a chimpanzee or gorilla during pregnancy?

    Could a female human chimpanzee or gorilla embryo and give birth to it or vice verse
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  • I have dark brown eyes. My DNA result gave me ''homozygous for blue eyes color''. What does that mean?

    Best answer: If your mom is Bb, and not BB, then you could be carrying the gene for blue eyes as a recessive gene. This means you are also a Bb, and could give the b to your child. I posted the math below:

    Brown eye gene = B

    Blue eye gene = b

    Each person has two copies of the eye color gene in their genome, one inherited from each parent. Now if both parents only carry the gene for brown eyes, BB and BB, then their child will receive one B from each parent, ending up as BB. The same works for blue eyes, if that's the only gene both parents carry, bb and bb. Each parent gives one b to the child, who ends up bb.

    If you have one parent who only has the gene for brown eyes, BB, and one parent who only has the gene for blue eyes, bb, then all the children, with no exceptions, will have brown eyes. Example: One parents gives a B, the other give a b. Bb always = brown eyes.

    Here's why: When you have two alleles (coding sequences) from genes that are at odds with each other, one version will override the other. When dealing with eye color, B always dominates b. B is the dominant gene and b is the recessive gene.

    But these children now carry the b gene in them, and could pass it down to their own children. Some of them, depending on the other parent, could end up with blue eyes.

    If one parent has the recessive blue eye gene, meaning they are Bb, and the other parent only carries the gene for blue eyes, bb, then each time they have a child, there is a 50% chance it will have blue eyes. Example: First parent is Bb, and the second parent is bb, then their children will end up as one of the four listed here; Bb, bb, Bb, bb.

    If both parents carry the gene for brown eyes and blue eyes, then each time they have a child, there is only a 25% chance it will have blue eyes. Example: First parent is Bb, and the second parent is Bb, then their children will end up as one of these four: BB, Bb, Bb, bb.
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  • If we talk about evolution, then which type of selection would be the prime cause of evolution?

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  • How would i be able to change DNA?

    Best answer: The simple answer is, yes (as has already been pointed out by others).
    However, to expand upon what some people have said, the more complicated answer is that it depends upon what you mean by modify. As others have pointed out, if you're talking about humans, we don't currently have the technology to modify the DNA of all cells concomitantly. For that matter, we can't to my knowledge do it for any macroscopic multicellular organism. Nor do I suspect would we probably want to do that, not without a much better grasp on biology then we currently have.
    However, there are numerous technologies available for modifying DNA in a more targeted fashion. Others have pointed out engineered nucleases, enzymes that cut DNA but whose target we can control, as key technology for genome engineering. They are especially useful in what is called gene targeting, or the modification of an endogenous gene (normally occurring gene in the organism) through homologous recombination (others have provided decent references).
    There is another standard method of gene-therapy/genome engineering which hasn't been touched on as much, which is the use of retroviruses to permanently modify a host’s genome. Basically because retroviruses as a part of their live-cycle naturally use their own genetic material, in this case RNA, to modify whatever it is they infect by converting it into double stranded DNA and stably integrating into the host genome, we have used them to integrate whatever sequence we're interested in. Of course, it should be noted that this method is mostly a delivery vector, so it could be used in conjunction with engineered nuclease methods, but you can also just insert a gene of some sort.
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  • Would you consider DNA testing of viable way of determining for sure. Child being brought to the border is actually with its own parent?

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  • Whats the difference between a canine and a fang?

    Best answer: All fangs are canines, but not all canines are fangs.
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  • Is this genetic at all?

    My husband is 45 and I am 20 ( Ik big age gap). Im now pregnant and were super excited with a baby girl. Though his son who is 6 has autism. When my husbands ex wife had him she was 43, so I thought that may be the cause? I’m nervous now and wondering if it could be genetic at all? Thanks
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  • Do you have a biology degree? If so, what was your favorite biology class?

    Just curious. I have a bachelor in biology and cell biology was my favorite class.
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  • Are there any organisms/animals in nature (not human) that starve themselves?

    Best answer: Female octopus.

    Octopuses reproduce only once.
    - first, the female eats the male right after mating (his sole use by then)
    - then she stops eating
    - she finds a den, lays eggs, and spends her whole remaining energy caring for the eggs, cleaning them and aerating them.
    - she dies soon after her eggs hatch
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  • If a stem cell is just some organic material. Why can't you mass print ike integrated circuits?

    Tom Bearden says that a living cell has a brain located in a hyperdimension. The link to the hyperdimension is what defines a living thing. Hyperdimension is non local and is outside space and time. A sudden jerk in the rate of flow of time cuts this link. If Tom Bearden is a crackpot. Why can't humans simply build a stem cell out of basic organic matter. Even if they did it they don't know how to make a link to the hyperdimension.
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  • Why does people think they can live on mars when the low gravity can result in serious health problems?

    Best answer: Same as living in space ships, plus the radiation. It's not going to happen. People just assume things they saw in movies are real.
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  • In evolution do species on evolve to lose something rather than gain something?

    Best answer: Evolution most often result in the modification of an existing structure, rather than the appearance of something totally new. For example, when birds evolved wings, they modified their forelimbs instead of evolving wings out of nothing. It is the same at the molecular level. An existing gene may be modified for new functions, instead of a new gene evolving out of nothing. Gene duplication, meaning evolving an extra copy of an existing gene, is important in evolution, because there is a working copy of a gene while an extra copy can mutate and acquite new functions.

    Duplication of body parts is not as easy. All amphibians, reptiles birds and mammals still have a maximum of only 4 limbs, the same number of the earliest tetrapods. In contrast, loss of limbs has happened many times. The giraffe also has the same number of neck vertebrae as most other mammals. So it evolved a long neck not by adding new bones, but by enlarging the bones. Nevertheless, duplication of body segments have happened before. Millipeds and centipeds have many body segments, and their ancestors almost certainly had fewer body segments. Snakes have a lot more ribs than most other vertebrates, certainly a lot more than their lizard ancestor. Therefore it is indeed possible for animals to duplicate existing structures.

    Humans cannot breathe underwater because our skin is waterproof, since it is covered by a layer of dead cells. Amphibians can breathe through their skin because they do not have a layer of dead cells on their skins. Parts of our throat used to be gill arches. According to Dollo's Principle, it is not possible for an animal to re-evolve a lost structure. That means after examing a lot of different animals, he has not found any example in which a species has re-evolved something that its ancestor had but that has been lost through evolution. That means snakes cannot evolve the legs they lost, and therefore humans, snakes, birds or any reptile will not be able to re-evolve the gills of their fish ancestor. To evolve gills, reptiles mammals and birds would need to modify another body part and change it into gills. Whether that can happen or not is up to chance and luck.
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  • What will humans look like 1 million years from now if we are still alive?

    Best answer: Taller. Look at the average height from the 1500s vs today.

    Darker skin. Ozone layer is depleting so people will need darker skin to block uv rays.

    Brains are getting bigger. It’s just the next evolution of mankind.

    Stronger. Survival of the fittest.
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  • How do women have babies?

    Alright now that the title grabbed your attention, how do women with normal cycles have “whoopsie” babies? If they have normal cycles shouldn’t they know when they’re ovulating and which week to use a condom if they don’t want a baby? The whole thing of “getting pregnant at any point of the month” is that even true?
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  • When will we humans be able to 3d print a new perfect body and download our consciousness into it?

    Best answer: Elon-chan is working on it
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