Genetics

Some results from the Irish DNA project data. http://www.jogg.info/51/files/Wright.htm Some Dál gCais, (or Dalcassian) family names.

Does anybody know which area of origin are those genetic sequences consistent with? HVR1 16086C, 16355T, 16519C HVR2 263G, 315.1C

Hi Everyone, Slight confession.... i'm not a scientist.... but my partner is! Before I get royally booted off the forum could anyone recommend a humorous genetics book that I could buy him for his birthday? I promise to leave sharpish and not bother anyone ever again!!! Once again apologies for the gate crashing and I appreciate any response. Thank you, Stef

Okay, so we all know that women have XX chromosomes, and men have XY sex genes. Occassionally something will go wrong, and people will be born who are XXY or XXX. These are facts. At the moment, I'm writing a fanfiction for Naruto, the anime. It's all purely fiction, and as such, certain liberties are being taken. There's a comparatively small subgenre of fanfiction called 'mpreg', where one of the male characters, usually a male in a gay relationship, somehow falls pregnant. In my story it's made possible through the consumption of a special medicine. It's more magic than science, but being a scientist myself, I can't help but think about some of the possible consequ…

I am a senior in high school. I plan to pursue genetic engineering, specifically taking genes from one subject and introducing it into a new subject (gene splicing is it?) I want to soak in anything and everything. Where can I find information on the process of finding a gene in subject A and cutting it out and putting it into subject B Google searches have failed me. I don't understand the process of it, thus I have no idea where to start my research. PCR machines also, how are they going to benefit me in the process of recombinant DNA. My brother was telling me about taking a toxic gene from a chromosome and putting it in bacteria (E. Coli) and from the…

Hi has anyone ever cultivated transgene BY tobacco cell suspensions that initially showed no expression of fluorescent proteins and then suddenly, weeks later, the same cultures started to glow? Does anyone have an idea how this could happen? (Note: Gel Electrophoresis after DNA isolation and PCR was positive. There was just no fluorescence.)

When people talk about homosexuals they say "They dont have a choice" "its genetic", i refuse to believe that, i dont think you can be born gay, but by the experiences people venture through that makes them gay. Also i dont believe in the gay gene because growing up, most of my friends and i didnt like girls till around 4th and 5th grade. i went through that "girls are icky" phase pretty much. Anyways i dont believe the gay gene exists and i do believe its a life choice, people have their free will to choose or not in my opinion, if the gay gene does exist then its a very confusing part of genetics. what do you guys think?

Hi, I'm having my first course of genetics in college right now & our professor has givin us an assignment to find a hot subject about genetics & have a discussion about it with some groups approving & some non approving of the subject, so can any body please tell me what are the hottest subjects in genetics right now with on going discssions and disagreements in it?

Can someone explain this phenomenon in layman terms? I've read it's due to certain genes on the virus' RNA which create the proteins for that virus... but that's all I can find and that doesn't explain much other than the obvious; that some viruses are different from others.

Mars One is a proposed colony on Mars. The colonists are chosen via reality TV. The colony starts with 4 people and every 2 years, 4 more people join. Having babies is discouraged until after the first 5 years due to safety concerns. Now, that means that the population size when breeding is first "allowed" is only 8. Doesn't that mean founder effect is HUGE? Now, there's horizontal gene flow every 2 years (4 more people arrive). Is this rate of horizontal gene flow enough to offset the genetic drift and founder effect?

Is it right, that all humans have to 99% the same DNA? Does an african have to 99% the same DNA as an asian?

Hello. I am reading a book called "The Journey of Man: A Genetic Odyssey" and there is one part that I need some help understanding. It's about Lewontin research and I will just quote from the book: "[...]In the analysis, Lewontin used as his model the new science of biogeography because he thought this was analogous to what he was doing with humans - looking for geographic subdivision in order to define race. In fact, unsure of how to define a "race" objectively, he divided humans largely along geographical lines - Caucasian (western Eurasia), Black African (sub-Saharan Africa), Mongoloids (east Asia), South Asian Aborigines (southern India), Amerinds (Americas), Ace…

Disease can be transmitted in an autosomal recessive, autosomal dominant or X-linked fashion or arise de novo. I want to understand the case of a mutation that may either be autosomal recessive (homozygous or compound heterozygote i.e. one mutation in the gene from mom and a different mutation in the same gene from dad) or autosomal dominant. I’ve seen that autosomal dominant sometimes turns out to be gain of function. That means the protein might form complexes with the wildtype protein to make an overall dysfunctional complex or its hyperactive in some way and that gives rise to a disease phenotype. But most disease arising from a single gene seems to require both gene …

Hey I have already done an extensive research online regarding the subject topic and sadly it could not get any comprehensive answer. We all know that Homo sapiens have 46 Chromosomes, but what about the Neanderthal and other Homo Genus species??? This is a considerably significant question basically because it has serious relationship with proving the evolution of human against the creation theory. We all know that creation theory is a absurd concept, but some unanswered questions like the above sometimes makes the science's side weaker.

Hi everyone. I recently had an accident in the lab. I swallowed a couple of lentiviral supernatants drops from 293 cells when my dish fell down inside the hood and spilled all over my face. It was the day when collecting infectious media with a human p53 mutant construct. I´m so scared, I reported the accident and I´m under medical follow-up but I am uncertain of what might happen in the future to me. I am aware my titer of lentiviral vector in the supernatant was very high, between 1E+5 and 1E+6 per ml. Do you guys believe my stomach pH might have killed all the viral particles before the attached any of my cells in the gastric tract?. I´m going crazy! Than…

I am confused about nondisjunction and so I tried to draw it out but am not sure if it's correct. Please comment on the attached picture. From what I read, NDJ occurs in both males and females, but does it occur predominantly more in one sex than the other? For instance with regards to Kleinfelter's Syndrome (XXY), which results from Meiosis I NDJ, does it occur more in females than in males? Thanks.

Hello, since often this topic is discussed in terms of percentage, and science writers speaks with very different terms on that subject , I would like to know at what point knowledge of the dna is and what are next milestones (and obstacles) to understand fullfill how dna works and, in particular, how human dna works. Thanks, wily

Can one make a genetically modificated plant or animal "at home"?

Hi, I'm a computer scientist who has recently become very interested in genetics. I have been studying how amino acids are encoded and decoded. I have two questions that came up and wanted to see if anyone could help shed some light on these: 1. Methionine is known as the Initiator or Start codon, which is coded AUG. This makes sense to me, but I noticed that Methionine can also exist in a gene where it is not the Start codon. For example, in the gene Beta-defensin 4A (2), The 16th codon is Methionine again (http://www.uniprot.org/uniprot/O15263). So my question is, how does the Ribosome (I believe that's the correct structure) able to distinguish between Met…

Hi ! I would like to know how you can reveal a wahlund effect, how you can confirm it. Thank in advance for your help Vincent

Is there any "correct" way to note possible genotypes that a given phenotype might be without having to write a long list? eg. an animal shows two distinct traits, lets say albino (recessive) and funky-pattern (dominant). We have no way of knowing if that animal is heterozygous or homozygous funky-pattern so the genotype could be either aaaa FFFF or aaaa F+FF If an animal has several dominant traits the list of possible genotype will soon get very large.

Hi, What are the differences and the common points between the founder effect and population bottleneck ? Can we consider the founder effect as a particular case of a population bottleneck ?

Hello guys.First post wooho! So yeah, I know that female mammalians randomly inactivate one X chromosome in somatic cells.So, if a human female is a daltonism carrier, shouldn't she be half daltonic because ~1/2 of her cells in retina will have recessive allele and other ~1/2 will have dominant allele?.Or ~1/2 is not enough to cause colour blindness?And I'd like to know if it's true with other X linked diseases.

How can u guess at what genotype eye color your parents, and grandparents had? What eye colors are dominant and recessive? Do the colors mix? I ask this because my family has asked this question because my aunt has blue eyes and my uncle has brown eyes. Two kids have either blue or green but the third has a brown or hazel color. How is this possible?

I am doing some private research on the effects of captivity on biology, chemistry, and psychology. I am particularly interested in how it may change DNA . Is anyone familiar with this topic or research done on this topic?