cheetahs-have-long-been-cited-as-a-classic-example-of-a-species-whose-low-genetic-diversity-put-it-a

Name: cheetahs have long been cited as a classic example of a species whose low genetic diversity put it a
Uploaded: 2020-07-15
Duration: 2 min 58 s
Channel: Numerade
Description: Cheetahs have long been cited as a classic example of a species whose low genetic diversity put it at increased risk of extinction. Other researchers have debated the validity of this view. For a start on the literature, see:

Question

Cheetahs have long been cited as a classic example of a species whose low genetic diversity put it at increased risk of extinction. Other researchers have debated the validity of this view. For a start on the literature, see:

Carlene Jimenez · Accepted Answer

so this necessarily isn&#x27;t a question, but it does, um, refer you to some literature about what went into the shaping of the genetic code, Um, and the research behind that. So in this first paper, using the random generation of new genetic code and comparing these new codes to known quoting triplet concentrations in or in a binding sites, researchers showed that the characteristic characteristics of the genetic code being error minimizing and having stereo chemical associations between coding triplets and biting sites or trades which developed independently Well, the paper did not make any new or direct hypotheses towards how the genetic code as we know it developed. Researchers stated that their findings were robust enough to be applied to existing hypotheses. Um, for the evolution of the genetic code, Um, in the second paper, um, the genetic code as we know it is error minimizing, um, the amino acids produced falling point mutations are identical or of similar properties to the original amino acid. Um, and there are two hypotheses. As for why this is the first, is that the genetic code was selected for specifically for being error mint, minimizing and providing the heist fitness to individuals who possessed it. Um, and the second hypothesis is that the genetic code is air minimizing as a historical artifact, um, resulting from an optimization of a primordial genetic code, which encoded fewer than the 20 amino acids that we have today, researchers generated randomized, um, sets of historically restricted you that a code to compare the robustness of the second my process with the efficiency of the genetic code today. And they found that the historically restricted code was less efficient than the genetic code of today. And this overall suggested that the second hypothesis does not fully explained the error minimization that we see in the genetic code as we know it. Um, in this third paper, they say, Did that be? Genetic code is air minimizing but unequally, Um, the third court on position is more a bust in the second, which in turn is more robust in the first at minimizing mis translations and researchers were investigating. The role of mutation will condition trans version by disease as well as the role of mis translation by season shaping. That is that a code overall finding that mistranslation biases may have played a stronger, um, selective force in determining the efficiency of genetic code. Um, and this final paper, um, was just a comprehensive review were in the author&#x27;s proposed that the initial genetic code was shaped by stereo chemical interactions between amino acids and Arnie, which further were shaped by bio synthetic modifications on these amino acids before finally being optimized with code on reassignment, giving us the genetic code that we know today.

Carlene Jimenez · Answer

So this question wants us to come up with a hypothesis to determine the type of variation which influences human height. Um, and says that we any hypothesis that we can come up with this Fine. Um, so suppose that we hypothesized that variation in human height is solely due to environmental variation, for example, with influences such as diet. Um, so then are no hypothesis to this would be that variation in human height is not do just to environmental variation, genetic variation and genotype by environment. Direction could also play a role. Um, but ah, here are experimental conditions to test our hypothesis. Um, so they could follow sets of Mona&#x27;s. I got IQ twins as they grow from childhood to adulthood, regulating their diet and monitoring their height at regular intervals. In our control group, the pair of mono psychotic twins will be fed a consistent diet as they grow, with no variation between either of them. What, they&#x27;re fed the test group in our experiment. Ah, we will have one of the twins be fed a diet similar to the control group, but the other twin will be fed a maximally nutritious diet. Given our hypothesis, we would expect no variation between the control set of twins as they were fed consistently, um, the same type of diet. But we would expect variation in the test group. Um, between those sets of twins. Specifically, we would expect the twin, which was fed a more nutritious diet, to be taller than the other twin. Um, And if there was variation observed in the control group, um, and or no variation observed test group, we must assume that are no hypothesis is correct. So these are just ways we could interpret results. Um, now there are a couple of problems with this experimental set up. In general, it is just extremely, extremely unethical. Um, controlling what people eat isn&#x27;t ethical. Neither is feeding people a diet, which you believe will make them shorter. Um additionally, to reduce any other environmental variation, you&#x27;d have to a closely monitor their lifestyle and how these twins would interact with their world. And this isn&#x27;t very ethical either. So, given this, um, such an experimental outline is above is which requires a lot of rigorous control is easier done in an animal model, such as with mice. Um, so this is just a way that you could compare or test your hypothesis on height

Christina Sorrentino · Answer

Let us complete the following sentence. After looking at the mouse coloration case, study a possible hypothesis to take a better glance at how predators affect natural selection is what snow. Let us go back and determine our hypothesis. After looking at the mouse coloration case, study a possible hypothesis to take a better glance and how predators affect natural selection is. If predators discern color, this may play a role in the natural selection process.

Ali Crampton · Answer

this question asks s why accurate Dan Air application is important. Or why on another way to say this would be having high fidelity for your d. N A replication. So we know that the raw material for evolutionary change is genetic variations. The&#x27;s arise through a righty of mechanisms that alter the nucleotide sequences of genomes. These changes in sequence range from single point mutations to larger scale deletions, duplications and rearrangements. At a fundamental level, evolution is random. Um, these changes in gene Dean A or genomic sequences, um, are not intentional. Uh, what happens and what makes it feel like these air being driven is that there&#x27;s a selection for changes that confer an advantage. So, um, mutations that are advantageous persist. However, not all changes are advantageous. There&#x27;s a risk that any time that there is genetic variability, you&#x27;d be altering something that is fundamental to how the organism needs to survive. So striking the balance between introducing genetic variability while also being able to continue making more of the species isn&#x27;t for a week. So that&#x27;s why having accurate DNA replication or high DNA replication, fidelity is important so that these mutations that are petesch iss don&#x27;t get drowned out by other gelateria sis mutations

Kendrick Buford · Answer

So we&#x27;re here to think of some counter arguments to what was supposed by Tony Alison because it was noticed that there&#x27;s a different than HB for and you never talked best. It was elegant. My mom, James different, Um, all Kenyans, your governments. And so we want offer a counter argument or even a test for the following alternative hypotheses. And this gets into. When I was about the Jays, alternative hypothesis turned. So the first ones that mutation rate is higher in certain tribes. And then the simple there&#x27;s a motive bridge and they&#x27;d mix him on the tribe. So the Leo Rose High foods in breathing in certain tribes. So ask that question. They start with a person so that the mutation rate something. It is unlikely that the mutation res hired in some tribes, the others. But we could test it and assess dances. Synonymous Substitution, Easy way to test. Okay, so this did work. But in Russ Theresa failing because the little number substitution, we could also measure mutation rates. And now code readers. That&#x27;s all turn to today. Please don&#x27;t cheat. It&#x27;s there. And this I don&#x27;t want to say OK, now be That&#x27;s a low degree of getting makes him on try. And so the leader rose High frequency do inbreeding a certain tribes. So we&#x27;re looking at is a little now and the excellent will be commented areas to have the highest ism of malaria in lower in here is wrapped Miller. So the ISS Yes, it is. And And this will argue against the angry pops because not inbreeding. Blair, you can drive this selection what we contestants do you. So this goes with the embryo hypothesis. So in brief news in says to cooperate Rix, we would see this Hi and bring and why eso Leo pretties today&#x27;s action. And if we want to do too if you want to figure that out, what we would do is just a molecular analysis.

Problem

For an intriguing hypothesis about how genetic dr…

Problem 21 Easy Difficulty

Cheetahs have long been cited as a classic example of a species whose low genetic diversity put it at increased risk of extinction. Other researchers have debated the validity of this view. For a start on the literature, see:

Answer

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