Genetics

We have CRISPR now, and more refined variations and techniques are being developed with more to come, some to improve accuracy, others to not so much cut and modify dna but target it instead. But this tools is LITERALLY like being Prometheus unbound, we now have to prime tools of our own alteration, so... shouldn't we vastly expand research into what makes humans tick, so we can enhance ourselves? We all know nature is a massive drag on the fates of mankind, the genetic lotto is a cruel task master to a great many people. Some people are born gifted, intellectually, physically, the latter in both health and appearance, while others are born dullards and worse, sq…

Hello, for the last year I've felt that my mental functioning has been slowing down and is not quite what it used to be. I'm only 25 and I notice that simple questions will take me longer to answer and I have quite a bit of mental strain. I know this is partly due to habits and negative self-talk. I am a totally different person, and I do not like myself at all. So please, any suggestions you have would be greatly apperciated. Any supplements, lifestyle changes, or anything in between.. I'm willing to do anything to return to who I was. However, I did a 23andme a ~7 months ago to hopefully get some insight as to what is going on. I found out I have quite a bit of mutatio…

i was start researching towards genetics and homosexuality and was wondering that either these claims are scientifically valid or not ! please say why if its a false claim and non valid evidence thanks "sexually differentiated behaviors are organized during early life by an irreversible action of sex steroids" http://www.morganclaypool.com/doi/abs/10.4199/C00064ED1V01Y201208DBR008?journalCode=dbr& "A linkage between DNA markers on the X chromosome and male sexual orientation" http://science.sciencemag.org/content/261/5119/321.abstract "Homosexuality may be caused by chemical modifications to DNA" http://www.sciencemag.org/news/2015/10/homosexuality-may-be-cau…

Hi - I am just learning genetics, as my lab will be incorporating genetic analysis into future work. I have a decent understanding of basic topics (meiosis, mutations, simple epigenetics), but I have of trouble visualizing the concepts underlying genomic analysis. Specifically, I can't seem to figure out how recombinant strains are formed. Here is an excerpt from a site describing recombinant strain formation: "The construction of a set of RI strains is quite simple in theory and is illustrated in Figure 9.4. One begins with an outcross between two well-established highly inbred strains of mice, such as B6 and DBA in the example shown. These are considered the pr…

I am a redhead/ginger. Now don't get me wrong, i love it but i would love to know what made my hair orange/red. I find the topic quite interesting but i do not have much experience on the subject. My own theory is that its a genetic mistake, which can either be created when the parents' DNA combines because of two certain genes, which by result creates the MC1R gene and that the MC1R gene could be inherited, but hiding for multiple generations. Or what is the reason? Feel free to give inputs! People often ask me why none of my parents has the same hair color, and until now this is the explanation that i gave them. I just wish to be informed, and be able to inf…

Just a curious thought if a random polymorphism could ever become a dominant trait in a population without any kind of selective pressure on the gene. ~EE

I have green eyes, so does my brother, mother, father and grandparents. First of all, is this rare? and second of all, how do green eyes even come in to existence? I know that brown is the most dominant allele, followed up by blue, and I've heard that green is somewhere in the middle, and it also depends on light reflecting off of them. Is green also an allele? I would just like some clarification please

I have had a hard time Googling to find out some specifics about the Out of Africa migration theories - here are the questions I have not been able to determine - and maybe they are not determinable right now - I understand that possibility. So, what is meant by a wave - a single bunch of people moving out of Africa as a single bunch one shot move or several bunches moving over a short period of time? How many people would be in such bunches? Can these bunches who left be traced to a specific fairly pinpointed place of leaving/specific cohesive group or did they come from different places maybe unknown to each other? Africa, East Africa, Northeast Africa, Keny…

(link removed by mod) How accurate are these tests? Has anyone here done any DNA testing to try to uncover their roots?

Scientists are genetically modifying trees to produce more terpenes. Could one genetically alter trees to produce more hygroscopic terpenes. I note that cellulose is hygroscopic and so is glycerin. Could one get a tree to produce volatile hygroscopic terpenes or other substances? These trees could help create rain in drought areas, for instance. I explain more use for hygroscopic terpenes in my Air Pollution page on facebook

If so, where and how? I'd also like to know more about a new method that allows 50% of my DNA and 50% of my partner's DNA to be in the same child - if there's such a thing. Thanks! <3

I need help in a genetics problem that is confusing me, if anyone could pls, . Plant three-way cross: (A x B) x C . (A x B ), A and B differ by genes at 5 loci . Cross the result of Ax B with homozygous line C . C does not increase the number of segregating loci and F 1 produces all seeds needed for representing the A/B//C progeny, F2 population does not need to be considered Question 1: How many F1 seed will you need for A/B//C (F2 pop does not need to be considered for question 1 ? Question 2: Suppose now each F1 plant produces 300 F2 seeds, how many F1 seed would we need to to A/B//C completely represent the population ? Question 3…

Hi everyone! I really just joined to ask this question. I would've googled this info but I'm not sure how to word it properly. I'm aware that when a male child is created, they receive an X from the mother and a Y from the father. Because the mother has a double XX - one from her mother and one from her father - I want to know which of those X chromosome the male child would get? Would it be a copy of the X from the maternal grandfather or grandmother? Or it would it be some combination of both? Since the male child can only receive one X from the mother, I'm assuming it has to be one or the other.

I am in a discussion with a theist and he gave me a very weird question indeed.. one that I find a bit moronic and yet a bit interesting.. I then thought about it and I really don't know.. I am not a scientist but am interested in this area.. so if anybody has the slightest ides about this question.. much appreciated. Which evolved first, the human skin, blood, or the human heart?

Wouldn't the world be awesome if all people living therein were attractive and brilliant? My solution 1. Take 1000 fine people - tall, handsome specimen of good character and ancestry, possessing intellectual brilliance of some sort. 2. Lock them somewhere, on an island maybe. 3. Make them breed. Assign a mate to every one from among them and each pair would have ten children. 4. Choose only two from every ten children. First choose the brilliant children from among them. Repeat for several generations. Then, from the brilliant descendants, start choosing the most handsome ones and continue the process for several generations. 5. The end result is an attractive…

I have been learning genetics for a year now. Recently, I have discovered a species as called above, which as some articles said is quite unique for its ability to evolve to withstand incredibly harsh conditions, despite reproducing asexually. I, personally, do not find this interesting as bacteria, reproducing asexually by binary fission,still evolve well with material mainly from mutations. The case in point here is the antibiotics resistance. Can sbd illuminate what is special about this animal,they are not the only one who evolves with asexual reproduction, right?

Passer-by here and I apologize if I may be intruding a little. Doctor told us that our baby might have GRIN1, not entirely sure as my wife and I are going to be tested in the coming weeks to see if he does. We can't can't find much on GRIN1 and were wondering if you guys knew anything about it. Anything at all would help guys, thanks for your time.

One woman told me that she suffers from or has color blindness, but her parents and children don't suffer from or have color blindness at all. She said that she doesn't know why and/or how this happened to her and asked me why and/or how only she was born with color blindess and all the others not. I didn't know what to tell her at the moment. I also told her that I don't know too, because I really don't know why and/or how this happened to her, but I also really wonder why and/or how this happened to her too. What should I tell her otherwise? How really should I answer her question? What do you know? What do you think? What is your knowledge and/or opinion about her stor…

What is the way of the inheritance in the following image and what is the probability/chance that couple III-2 and III-14 will bring mutant descendant/baby if (in case that) they are going to be married?

What is the most likely way for the inheritance feature? (from google translate) In other words what is the type/kind of inheritance that the below image shows? Is it autosomal? Is it X linked? Is it Y linked? Is it cytoplasmic? Is it dominance? Is it recessive? Also what is the probability/chance that the son of couple 1 and 2 will be mutant if (in case that) they are going to be married? I am newbie/novice in genetics and my lecturer/teacher didn't upload solution and/or answer to these two questions on the moodle, so I can't check and know if I solved and answered these two questions correctly or not, and I want to be prepared to pass my test in the next few d…

Is it autosomal dominant or X linked dominant?

Is there any possibility to make a drug that will replace the defective sex genes that cause the eye to have been elongated in most forms of myopia so that a normal eyeball will be propagated?

The topic title says it all. How does the machinery of the cell distinguish between the template and coding strands of the DNA double helix? If it transcribed the coding strand, instead of the template strand, the resulting protein would be wrong.

What types of DNA fragments would result if you were to cut the plasmid shown with both restriction enzymes, EcoR1 and BamH1? a. 1/2 20 kb, 1/4 30 kb, 1/4 10 kb b. 1/2 20 kb, 1/2 60 kb c. 1/2 30 kb, 1/2 50 kb d. All 80 kb I have identified the answer as being a. My reasoning is this: Distance between EcoR1 (20kb) and BamH1 (40kb) =20 kb Distance between BamH1 (40kb) and BamH1(70kb)=30kb Distance between BamH1 (70kb) and EcoR1 (80kb) =10kb What I am confused by though, is the 1/2 and 1/4 component of the answer given. Can anyone give me a breakdown of that please?

Hi! Can someone please explain what smallest region overlap means? I know it involves deletions, but can't really understand what "overlap" refers to. Thank you in advance!