Discussion: Kurzgesagt's newest YouTube video on GMOs! | AskScience Blog

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Thursday, March 30, 2017

Discussion: Kurzgesagt's newest YouTube video on GMOs!

Discussion: Kurzgesagt's newest YouTube video on GMOs!


Discussion: Kurzgesagt's newest YouTube video on GMOs!

Posted: 30 Mar 2017 07:05 AM PDT

Hi everyone! Today on askscience we're going to learn about genetically modified organisms, or GMOs, and what they mean for the future of food, with the help of Kurzgesagt's new video. Check it out!

We're joined by the video's creators, /u/kurz_gesagt, and the scientists who helped them make this video: geneticist Dr. Mary Mangan, cofounder of OpenHelix LLC (/u/mem_somerville/), and Prof. Sarah Davidson Evanega, Professor of Plant Breeding and Genetics at Cornell (/u/Plant_Prof),

Additionally, a handful of askscience panelists are going to be joining us today: genetics and plant sciences expert /u/searine; synthetic bioengineers /u/sometimesgoodadvice and /u/splutard; and biochemist /u/Decapentaplegia. Feel free to hit them with a username mention when you post a question so that they can give you an answer straight from the (genetically modified) horses mouth :D

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Do giraffes get struck by lightning more often than other animals?

Posted: 29 Mar 2017 08:25 AM PDT

What's going on, at the chemical level, when you let a wine bottle "breathe"? What exactly is being oxidized, and how does it affect the taste of wine?

Posted: 30 Mar 2017 07:42 AM PDT

It is my current understanding that ethanol will turn into acetaldehyde and acetic acid when it comes in contact with atmospheric oxygen. Is that what makes red wine lose its acidic taste and become a bit more bitter?

And why does red wine turn bitter but white wine turns acidic?

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Does a single atom cast a shadow?

Posted: 29 Mar 2017 06:59 PM PDT

How does depression affect the brain of a developing child?

Posted: 29 Mar 2017 08:23 PM PDT

Why do some fonts look "Ugly" and others "Formal"? How do people interpret different fonts that give them a different feel?

Posted: 30 Mar 2017 07:06 AM PDT

Why does comic sans look so childish while something like times new roman looks professional?

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What are the "tendrils" coming from cancer cells?

Posted: 30 Mar 2017 07:36 AM PDT

Are asteroid impacts more likely at certain latitudes?

Posted: 30 Mar 2017 07:06 AM PDT

Basically the topic. Are asteroids more or less likely to impact at certain latitudes?

Because I've been playing Planetbase and that made me wonder. I don't expect any prevalence to be part of the game, to be honest, but it'd be interesting to know nonetheless.

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Are humans more sexually active during spring?

Posted: 30 Mar 2017 05:57 AM PDT

Since spring is mating season for a lot of animals does that mean thaht humans also feel a stronger urge for sex during that time. If so is that something that we kept from our ancestors or did we bever have that urge even thousands of years ago?

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Why aren't men and women the same size?

Posted: 30 Mar 2017 05:38 AM PDT

Largely, I mean.

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Is there a medium or method of information propagation in the universe that is not a wave or particle?

Posted: 30 Mar 2017 05:32 AM PDT

There are discrete "packets" of information, which we call particles, or continuous "streams" of information, which we call waves. In some circumstances you have things that have properties of both (light, for example) - but do you have things that have properties of neither?

Is there any theory, or evidence of, an additional way that natures propagates information?

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Why does laminar flow occur?

Posted: 29 Mar 2017 04:07 PM PDT

I have taken multiple semesters of transport phenomena and fluid mechanics and I'm well aware of what laminar & turbulent flow regimes are and how the Reynolds number plays into the determination. But what is the actual theory behind why fluids tend to move in lamellae at low Re? My best guess is wall friction forces promoting the stratification, but I tried searching online and in r/askscience and couldn't find any conclusive answers.

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When playing a lottery where the gains are shared between winning tickets, does playing the same number twice has the same expected value as playing two different numbers?

Posted: 30 Mar 2017 07:30 AM PDT

Do people who stutter have a stutter in foreign languages they learn?

Posted: 30 Mar 2017 01:30 AM PDT

How come that para-/quadriplegics don't suffer more from lung embolism, compared to people who actively use their legs?

Posted: 30 Mar 2017 06:26 AM PDT

Can ingesting a lot of phosphoric acid (like, from soft drinks) contribute to premature muscle fatigue?

Posted: 29 Mar 2017 05:12 PM PDT

I have heard that one of the components of muscle fatigue is a build up of phosphorous. I'm wondering if eating a lot of phosphoric acid increases the amount of phosphorous in the muscle tissue or something.

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What chemical reaction takes place on the surface on the skin in order for ninhydrin to reveal fingerprints?

Posted: 30 Mar 2017 05:09 AM PDT

Just as the title says. Ninhydrin allows us to visualize fingerprints, but what does that say about the molecular composition of human skin?

Thank you for your replies.

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If I have a dead power pack (Schumacher SJ1) that is used to charge vehicles, can I hook it up to a running car battery to charge it?

Posted: 30 Mar 2017 05:08 AM PDT

I am just wondering how the flow of electricity would be. If I just hooked up the positive terminal from the dead charger to the positive head of the running car battery, would it charge the battery in the Schumacher?

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Why doesn't my electrolyte water taste salty?

Posted: 30 Mar 2017 12:29 AM PDT

The ingredients of the electrolyte water I'm drinking are deionized water, potassium bicarbonate, magnesium chloride, and calcium chloride. How I understand it, all of these dissolve into their respective ions, and if you told me that there was K+ and Cl- in the water I would expect it to taste like "No Salt" dissolved in water. So, why doesn't my electrolyte water taste salty?

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How is it possible to predict macroscopic properties from a molecule's formula?

Posted: 29 Mar 2017 06:25 PM PDT

A simple example is how Sodium (a homogeneous substance whose atoms each have 11 protons and typically 12 neutrons) is an highly reactive metal, and Chlorine (a homogeneous substance whose atoms each have 17 protons and typically 18 or 20 neutrons) is a corrosive gas, but together as a Sodium Chloride salt along with Potassium Chloride and ATP can be used to pump both through a lipid structure against the solution gradient.

Are these relatively macroscopic effects predicted by what we know about how protons neutrons and electrons work?

A more topical example is the prediction of metallic hydrogen, its relevant properties, how to produce it (temperature and pressure), and that it's semi-stable at room temperature.

What sorts of information did they consider and how did they use this information to make these predictions?

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Pressure and Temperature are related. So, can you lower the pressure in a system at absolute zero?

Posted: 30 Mar 2017 02:13 AM PDT

How does Hardy-Weinberg equilibrium apply with population undergoing natural selection?

Posted: 29 Mar 2017 07:46 PM PDT

Based on the five assumptions, it assumes that the population's allele frequency is stable. But with natural selection, the total allele frequency shouldn't be equal to 1.

So if I'm given the initial equilibrium, how is it possible to predict the percentage changes after natural selection?

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How do computers use electronic switches to load, for example a coloured image?

Posted: 29 Mar 2017 08:43 AM PDT

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