Genetics Definition and 184 Threads

https://scontent-ord1-1.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/11695990_871019416316266_5030432296478917772_n.jpg?oh=e6514207eea2317acc509cbb8d1382b0&oe=560E6C72 1. Homework Statement Homework EquationsThe Attempt at a Solution I'm really not sure how to solve this or where to begin. I don't know...

hello everyone, though not a scientist or professional student I have a fondness for Earth sciences, geology, seismology, ecology with interests in pole-shift theory, space/time relativity, archeology, anthropology and genetics, specifically, genetic genealogy. Here just to see read about...

I would like to study physics because I like the methodology it has as well as how it can open your mind in understanding the universe around us. Also I love the math aspect of it. But as the title says I am also really interested in neuroscience and genetics. What shall I do?

In my math world novel these numbers have come to life and they have 10 operational chromosomes( +, -, *, /, ^, arrow arrow(tetration), nth root, logarithm, super root, and super logarithm). They also have 4 sex chromosomes each of which can be X or Y. With these sex chromosomes it is like this...

I feel like I should know the answer to this, but I don't. Here is my question: I understand that an individual has two copies of each gene, one maternal and one paternal. But if one is completely dominant over the other, will both gene copies be transcribed and translated, or only the one that...

Mirabilis Jalapa exhibits incomplete dominance. So, if we cross Red and White colored plants (Parental Gen), we get, pink flowers (Filial I Gen). When these are selfed, we get red, pink, white in ratio 1:2:1 So, how do you determine that Red is dominant, because, we are dealing with incomplete...

Hey guys Do you have some info about quantum...genetics? Cuz I've seen a book on it but it's £50 so I read an article about some professor at MIT interviewing his about this. So do you have any info, knowledge, material on that subject? Thanks.

I have just read that genetically modified e. coli can synthesize human insulin. But I wonder. Human (eucaryotic) genes have all kinds of introns, regulators, starting sequences etc. Bacteria don't have all of those. How can a procaryota produce an eucaryotic peptide? Has the insulin gene been...

Homework Statement -(1)Difference between cross breeding and selective breeding.(2)cell or suspension culture -is it a step of tissue culture i.e has to be performed in every type of tissue culture OR is it a different kind( type)of tissue culture?[/B]Homework EquationsThe Attempt at a Solution...

Greetings. Well I do not have enough time to pose all of my questions and ideas I can get this thread started off. So let's get right into it. The teeth of a Beaver incorporate a comparatively high percentage of iron in their construction, making them very strong and orange hued. (Also made to...

Homework Statement If a gene contains 1500 bases how many unique sequences are possible? Homework EquationsThe Attempt at a Solution would it be 1500X1500X1500?

Homework Statement A tripeptide chain consists of three amino acids, which can be distinguished as first, second and third. Each is one of 20 naturally occurring amino acids. How many tripeptide chains are theoretically possible? Homework EquationsThe Attempt at a Solution would it simply be...

Can the genes or their epigenetic switches be modified in such a way that a person's sexual orientation changes, and the change becomes inheritable? Hypothetically, if a genetically exclusively heterosexual male performs sexual activity with another male in the absence of a female partner to...

Homework Statement A somatic mouse cell has 40 chromosomes, I know for meiosis 1 (prophase-telophase) it has 40 chromosomes and 80 chromatids. For meiosis 2 however I get confused. For prophase 2- telophase 2 would it then have 40 chromosomes and 160 chromatids? Thank you! Homework...

I was looking for a type of organism in which the was no differentiation between the gametes, both are 100% identical (of course, there could be mutations, but no allele differentiation in matching-type regions, like the positive + and negative - mathing types in some algaes), and with a sexual...

I want to know that say if a mosquito species A took more time in becoming resistant to a mosquito repellant (due to genetic mutation) than a mosquito species B in an environment of a particular mosquito repellant (say Deet). Can we say that the species A has a greater tendency to become...

Thoughts on this? http://journal.frontiersin.org/Journal/10.3389/fgene.2014.00140/full The codon redundancy (“degeneracy”) found in protein-coding regions of mRNA also prescribes Translational Pausing (TP). When coupled with the appropriate interpreters, multiple meanings and functions are...

Hi! I'm currently in high school and am extremely interested in biotechnological subjects like genetics, genetical engineering, dna recombinant technology etc.. What field should I aim for? #confused.

I was just wondering if some bacteria or nanotechnology could be genetically engineered to target the Ebola strains? Is this possible? If it is then why is no one coming up with a cure?

Hello, While I'm reading though various threads here on PhysicsForums, I thought I'd make a post asking for some advice/insight from those who have already gone though the process of finishing a degree and gained valuable life experience. I have a few questions which I'll post at the latter...

Hi, Today our teacher taught us about AIDS, and she said that it has no cure, because every time the genetic material of the virus replicates, it undergoes mutations, and a new type of virus is formed. Because of this, a lot of viruses are formed, each with a different genotype. That is why...

I'm currently in my second year of studying Physics in University(undergraduate) but I don't know if I should continue on this path. I'll start from the beginning... Ever since I was little I've always had a fascination with physics, I loved looking at the stars, read countless books on...

Can someone tell me What should I take in Community College to become a Molecuar Biologist? Should I take a Associates of Applied Sciences in BioTechnology or a Associates of Biology in Science(AS) or Associates of Science?However in the future I would like to work at a Biotech company,but I...

How much time does it take for mosquitoes to adapt to a mosquito repellant? I know it will vary greatly for different mosquito species but will there be any significant change in the genetic structure which can be measured if a mosquito (say culex pipens) is kept in the surroundings of very...

I was looking at this page and in the diagram (3rd image down) it shows 23 pairs of chromosomes. http://www2.le.ac.uk/departments/genetics/vgec/highereducation/topics/dnageneschromosomes Do they all fit together to make one strand or is there 23 separate pairs of chromosomes in the nucleus...

Hey guys! I need a little help in continuing my research i did this summer. So a little background information: This summer i conducted research at a REU where i focused on optimizing the power output of a wind farm by modeling wind turbine locations within a constrained space. I wrote a...

I was reading an article about some guys developing a strain of oil eating bacteria on their own. What kind of equipment would someone need to do that? It sounds really cool.

I am just wondering if this is possible. This might sound super crazy though. I know this sounds like sci-fi. If there is any related articles, I would appreciate if you comment them.Retrovirus artificial telomeraesfirst it is required to understand the chemical reactions and biological...

1. If parents contain Aa and aa for example, then why their division doesn't result in A,a and a,a but only A,a and a ? Homework Equations Nothing related. The Attempt at a Solution I don't know

Right, this is for the same universe as the "Two Planets" thread. To reiterate the backstory, the star system was colonized by an interstellar human civilization at some point in the future, but that civilization fell, the colony worlds were set back to the bronze age, civilizations rose, and...

Is the current status of human species the result of a self-inflicted and unconscious artificial selection? We have heard about many cases of artificial selection, where the hand of the man “created” a new species by selecting individuals with particular characteristics of its interest and...

I am currently working on a story, and would like to pose a Theoretical Genetics Question. If a non-human shape shifter takes human form, then meets and falls in love with a human being… Would their offspring be shape shifters as well? For the sake of this question we will make four basic...

In theoretical physics, why is the mathematical model favored over the mechanical model? Awhile back, I posted a thread asking about what each theory posits as real. For example, quantum field theory might limit the set of real things to fields, field quanta, the universe, and causality. It...

I recently read this article that one guy here on the forum wrote few years ago: "Evolution knows nothing. It has no direction or knowledge about anything. Natural Selection drives which random mutations in the genetics of a population are left to be passed on to the next generation. If a...

Genes normally have a 50-50 chance of being passed from parent to offspring, but scientists may have figured out a way to create gene drives that show up in offspring with a much higher frequency...

Hello! I am a rising sophomore with a major in microbiology. I wrote this post to seek out the advice from you in terms of double majoring with the mathematics. Although my primary interest is on the microbiology (especially the virology), I am also deeply interested in the fields of number...

I'm 25 years old, life's been kind of rough so I'm still in school. In Jan 2015 I take Calc II. It's one of the last classes I need before I can apply for pharmacy school. Problem is, never in my life have I been able to score an A in a math class. I couldn't do better than a B in Calc I and...

The following summary is derived from my 2003 biology textbook: Biology: concepts and applications, 5th edition, by Cecie Starr, published by Brooks/Cole, Thomson Learning. (I took biology 101 in fall 2004. This is not homework, but rather for my self-study and interest.) Chapter 24...

How fixed are they? Are they ever cured, especially anti-social personality disorder and borderline personality disorder, or they all just life long? Are they genetic or from trauma? Is the biological medical model true for some cases while the trauma model (sexual abuse, neglect, etc) is...

Hello! I am a rising sophomore with double major in a microbiology and a chemistry. I wrote this thread because I need a guidance in the course selection for the upcoming Fall Semester. Is taking both organic chemistry and biochemistry a good idea? I know that the biochemistry is based on...

Hi all. I will be graduating next year and wanted some of your input. I will receive a B.S. In applied physics and mathematics from University of Miami, hopefully summa cum laude (>3.9 GPA). I also have coursework in chemistry (through organic 2 and physical chemistry 2) and biology (through...

Hi, I'm an applied math major who wants to go to grad school for molecular biology. In my plan, I have included: Intro to cell biology & lab Intro to genetics Intro to microbiology molecular biology & lab advanced cell biology bioinformatics biological sequence analysis intro to...

I am a discus thrower and a coach. It is clear that there are a number of physical attributes that make some throwers genetically superior. For example, height, weight, strength, and wingspan. What I would like to discuss, is what attribute is more important to the discus thrower, between...

i wan to do the folowimg : [ 1 ] use the computer to find halftimes of isotoops that are jet unkown [ 2 ] i want to use genetic programming [ 3 ] i use the idea that there is a function = halftime( protons , neutrons ) i have questions : - is [ 1 ][ 2 ] a good idea - i don't know if...

I'm planning a semi-hard SF (around Mohs scale 4). I wonder, what can be the weaknesses of a robotic army? That enables to defeat it in urban warfare, by rebel groups, who managed to access some unexpected cutting edge technology, and some support from regular armies. So far, my ideas ...

As well-known, the bacteria (particularly E.coli) can gain the resistance against antibiotics. In Wikipedia its mechanism is written: I would like to know: 1) Are there any OTHER mechanisms for gaining the resistance? Can the bacteria gain resistance when it has got antibiotic, LB broth in...

For my B.Eng project, I'm optimizing the thermal efficiency of a boiler using genetic algorithm in MATLAB. I'm finding it very tough to write my fitness function, constraint equations and upload my initial population which is a set of data from my case study plant. for boiler thermal...

Published today in Nature, researchers report engineering an organism capable of replicating DNA with an unnatural base pair (X-Y) in addition to the two normal base pairs found in DNA (A-T and C-G). Here's what the unnatural base pair looks like (in comparison to the C-G base pair)...

What are possible explanations as to why variation persists in the natural world despite the effects of genetic drift and directional selection?

This is a fairly taboo and controversial field. I've been hearing from many studies on intelligence, that it is highly heritable. Identical twins raised independent of each other have around a 0.75 relation in IQ tests. Siblings raised together have a .45 relation. What makes it worse is that...