Genetics

Please don't ridicule as I am only a high schooler and I intend to design a synthetic silicon based DNA molecule, that is if I have the prowess. Has it been done, what scope of research is there in the mentioned field?

Hi there, new to the boards and new to really studying genetics other than basic biology. I have just undergone a dna test with some possible relatives and I have no clue how to read the results. I do not understand why some areas are matching yet I have a 0% chance of being their relative. Also I do not understand why my race was left blank and theirs was all filled in, is this something the lab saw from the dna results, something they just forgot to fill out when collecting samples or saw my married name which isn't typically caucasian and didn't want to fill it in despite my photograph looking very caucasian. Any help is appreciated and how to I understand my results a…

Hi my question is, is it really rare or uncommon for a person with natural blonde hair to have hazel eyes? Im a natural blonde and people are always accusing me of bleaching my hair because blondes usually have blue or green eyes...

I'm trying to read (with at least some comprehension) an article that is covering an analysis of the genomes (and partial genomes) of plants. The took about 150 different species and then attempted to reconstruct their evolution and how related they all are to one another. I need to form a presenation about the methods employed in their research, which is mostly analysis of the individuals' genes. This article is using a lot of words that I don't know and looking up the definitions of the words isn't proving that helpful to my comprehension either. A link to the article is here, with the passage titled "Phylogenetic Analysis" on page 9 being my focus. I need an unders…

Hello Everybody! I would like to know where I can find the inheritance of genes. I have a complex exercise, and I have to find genetic inheritance of genes fast. (Autosomal dominant inheritance, autosomal recessive inheritance, X-linked domimant inheritance, codominant inheritance, and mitochondrial inheritance) But I don't know how I can get these informations very quickly. Could you recommend a great website or anything else where I can find effectively the genetic inheritance. I am looking for a confirmed and correct website. I write an example: mutations in the GLA gene cause Fabry disease and I am looking for the inheritance... And the inheritance is X-link…

If my question hasn't been answered, it might be interesting to other people who can apply their knowledge to it. If it has been answered, that answer will be interesting to me. I'll elaborate on the title. Humans can understand the scientific method, and evolution obviously enabled this understanding in some way. However, did random mutation endow random rules of logic until it endowed the correct rules of logic, or did evolution give individuals the capacity to learn the correct rules of logic? One thing I think of is the way babies are taking in so much information. Perhaps this thread would have been best for an interdisciplinary forum including both evolu…

Which of the following best explains variable expression in mitochondrial diseases? a. locus heterogeneity b. heterozygosity c. heteroplasmy d. modifier locie. imprintingts for a homework from genetics... If anyone knows the right answer pls write with a short explanation Thanks! I am personally confused because i dont know how to think. If we take for a cause of diseases only changes in mtDNA i would say C for an answer. But mitochondrial proteins and their function is also under nuclear DNA. Please help!

I need some help with a research assignment, "How do you differentiate between driver and passenger mutations?" I understand the difference between the two just not the methods used to sift through them. Any help would be much appreciated

It's been reported that Dick Cheney and Barrack Obama are 8th cousins, having a common ancestor 8 generations ago. Other reports surfaced (most done by the New England Historic Genealogical Society, not sure how credible they are) that stated Obama being related to 8 U.S. presidents including both Bushs, Harry Truman, LBJ, through something ridiculous like "11th cousins 3 times removed" and the youtube community just about lost their minds. Anyways, what are the odds of random people.... well they aren't random people. What are the odds of people of the same race (Obama is biracial, but the rest are white) and similar social status being 6th, 7th, or even 11th cous…

Hello everybody, I'm a computer scientist and I've been working on algorithms for Genetics & Molecular Biology that detect & correct errors in DNA, mRNA, ... This work is unfortunately not available for free but property to the company I work for. However, I've been thinking for quite a while about creating a new programming language (scripting language) for Biologists. A language rich with biological structures and types such as : DNA, mRNA, Amino-Acids, Proteins, Cells, Viruses, ..., instead of the usual integers, floats, strings, ... , to help researchers and students make simulations of lab experiments. Since I'm no biology expert I have certain questions…

I figured, and it seems to be right, that on average, siblings will have 50% of their DNA in common. The words "on average" are important here, because they may share more or less that 50% of their DNA. What I can't figure out is this. Say I have two siblings. If I look at their combined DNA, how much of it will be the same as mine (on average)? Obviously more than 50%, but less than 100%. This is a statistical thing, and I would like to be shown how to work it out. Thanks, Greg.

Hi... I think women with gray eyes are more beautiful than themselves with non-grayeyes... That is, I find gray eyes beautiful so I want to know... How many percentage of the world have gray eyes? Anyone knows statisitics on this? And how many genes for gray eyes are recesive and how many are dominant or are all recessive or are all dominant? and thus can anyone give me a good conclussion of how much odds I have of having children with gray eyes if 1.you take into account that my paternal grandmother had gray eyes 2.I have a child with a woman with gray eyes and 3.I do not have gray eyes myself?

Hello.....I've been culturing human peripheral blood for karyotype analysis. However, in the past few days when i band my slides using giemsa and observe them under the microscope there is a cytoplasmic background that doesn't allow me to observe the chromosomes nicely and hinders the banding pattern. Can anyone tell me the reason why i am getting it and how do i get rid of this dense cytoplasmic background??? Secondly, there's splitting of chromosomes often seen while analysing the cells...any specific reason for splitting??? and how can it be avoided?? thanks in advance

I'm not sure about this, Can anyone help me answer this question? Thanks for any help! Also I have another question, what are difficulties in using population studies based on race?

How does RNA Polymerase know which strand is the template strand and which strand is the coding strand and how does it know which direction it must go? Also how does it know where to look for the starting codon of a gene? thanks in advance Daniel

Hello, Is it poissible to have the DNA or gene of all ancestries?Because a human has 20000 genes. And I have 10000 gene of my mother and 10000 gene of my father. And 5000 of my grandpa and so on. So lets go 20 generations back: I have 20000/(2^20)=0.02 gene of every ancestor who lived 20 generations ago. So I lost many gene of my ancestors, right? The maximum is to have information about 20000 ancestors. Is the way I'm thinking right or wrong? Thank You.<br class="Apple-interchange-newline">

I thought of a question when looking at my guppy fry today. To introduce you to guppy genetics, here are the three genes I'm referring to. Here is an albino guppy. It has red eyes and no melanin in its scales: http://i00.i.aliimg.com/photo/v0/101291396/Full_Platinum_Guppy_Fish.jpg Here is a gray guppy. It has black eyes and does express melanin in its scales: http://img.photobucket.com/albums/v415/Okiimiru/073-Copy.jpg Here is a blond/gold guppy. It has black eyes but no melanin in its scales: http://i810.photobucket.com/albums/zz25/Nymox/Guppies/blondeguppy.jpg My goal was to breed a solid white guppy that had black eyes. The fish I started out with were…

hi, i am looking for an efficient free software to export my DNA sequence of interest , one that could calculate the gc%, Tm, second structure, etc. My collegues use generunner program but it is not compatible with my windows 7 (64 bit) home premium versio. Any other similar software could you suggest instead? THANKS IN ADVANCE

I'm writing a book on Circadian Rhythm Disorders, specifically Delayed Sleep Phase Syndrome DSPS. Part of the book deals with genetics which I understand poorly. My background is in Aeronautical Science. I'm just looking for someone to point me in the right direction, not explain this subject fully to me. I'm trying to understand a concept of genetics involving use or disuse. I'd rather not contaminate the actual question by telling you what problem I'm trying to solve. Hope that doesn't come across the wrong way. Instead let me give you a hypothetical example of what I'm talking about. Lets say that in my hypothetical model it is discovered that the hu…

Does every caucasian also have huns ancestries? If yes, how much in %?

I don't know much about the HGP and what info it was producing in the early 90's, so does anyone know what the HGP's effect on mapping the gene causing Saethre-Chotzen syndrome was? Or could you point me in a good direction to find the info myself? Thanks!

how can data from twin studies provide further evidence about the inheritance of high blood pressure? please help rreLLY STUCK

I'm trying to think of a research topic related to cancer. To do so, I feel like the first step is to literally list every single possible difference between cancer and normal cells. Aside from the obvious cancer replicates without bounds, there's other differences like differences in energy pathways, etc. Would you guys mind helping me out and literally putting down EVERYTHING that you know is different between cancer and normal cells? Thanks a lot!

HELP!! I am really stuck on how to make a restriction map for the electrophoresis image (attached) Lane 1: Bioline Hyperladder I Lane 2: Uncut pUC18 (partial digest) Lane 3: HindIII Lane 4: EcoRI Lane 5 HindII and EcoRI double digest I have found the fragment sizes for each lane but they don't add up to the same amount - there is 1 to 2kB to much or little. I need to find the size of a foreign insert and no idea how to go about doing this Apologies if this is unclear but any help or ideas would be appreciated

Hello, everyone. I'm doing a study in genetics at my school, and I've run into a bit of a roadblock. Part of my study involves performing subcloning. I understand that a gene of interest must be isolated from a parent vector before it can be ligated into a new vector, and that the ends of the gene of interest and the vector you're trying to insert it into have to have been cut by the same restriction enzymes. For example, if you have plasmid A and plasmid B, and you want to take a gene from plasmid A and insert it into plasmid B, you have to do a restriction digest to cut the gene away from plasmid A, as well as a restriction digest -- using the same plasmids …