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Mani this1 0 1 2 8 1 genetic material? 4mon 8 2 1 sepnpord recombination 3 1 eaon 8 8 1 1 1 procass 0 Wlich Whichback 1RECOMBINATION 3sinjax]...

Question

Mani this1 0 1 2 8 1 genetic material? 4mon 8 2 1 sepnpord recombination 3 1 eaon 8 8 1 1 1 procass 0 Wlich Whichback 1RECOMBINATION 3sinjax]

Mani this 1 0 1 2 8 1 genetic material? 4mon 8 2 1 sepnpord recombination 3 1 eaon 8 8 1 1 1 procass 0 Wlich Which back 1 RECOMBINATION 3sinjax]



Answers

Assuming no gene linkage, in a dihybrid cross of $A A B B \times$ aabb with $A a B b$ F 1 heterozygotes, what is the ratio of the $\mathrm{F}_{1}$ gametes $(A B, a B, A b, a b)$ that will give rise to the $\mathrm{F}_{2}$ offspring? a. 1: 1: 1: 1 b. 1: 3: 3: 1 c. 1: 2: 2: 1 d. 4: 3: 2: 1

So the first thing that we should think about is what is a mono hybrid cross. So model means one hybrid would be, um, hetero Zika's So one One trait that we're looking at in the person that we're looking out for that trait is a hetero zag it for that particular trait, meaning that ah hetero zegas has to Leal's that are not the same. But they show the dominant trait because they do have a dominant olio. So this example, I'm going to use this a big a being my dominant trait, little eight being my recessive trait. But this would be my hetero psych it because they have one of each, although they are showing the dominant trait. So why not Model Hybrid Cross would look like a regular pen. It's square here, straw. This meaning that both individuals are header is, I guess, and you will see what that ratio looks like. So, as we can see, um, three of these individuals are going to show the dominant trait. Although one is homeless, August dominant and the other two are homes that are headers, I guess, um and then the last individual is going to be a homeless. I get recess ITV individual for that trait. So for our fino type here, um, we are seeing a Sophina type. PH is what is the trait? What are we seeing from the outside? So with three individuals showing the dominant trade, the FINA typical ratio would be 3 to 1 because one individual is showing the recessive trait. However, are Gina typical ratio? Gonna be g e here would be genotype. Meaning, what are the Leal's? Is it a big a big A? Is it heterocyclic a Is it, you know? Is it big a little a or is it too little A's. So that's different. So our Gina tip pre show is one because that's our well, I should do that in different color to see all can see it better one being there is one homeless iess dominant individual with both dominantly alls to because there are two hetero zegas individuals and thank God, supposedly buck and one because there is one home is, I guess recess. ITV individual. So our gina too big ratio is 1 to 1. But our FINA tepic ratio is 3 to 1

This pundit square shows what it would look like for two parents that have header zebras gina types for two traits, So this is going to lead to offspring with Fiona typically ratios that are most close 9-3-3-1.

Hello. Assuming complete dominance between to die hybrid F one pea plants, which are offspring from a court from across the capital capital, local capital, capital and lowercase locates Locates Little Case will result in fewer after if, you know, type issues of blank. So why don't we go ahead and do this cross the first to get f one? Let's do. The parent will cross. So we're gonna have a B, maybe A B and a B all capital. We're also going to have, uh, lowercase a B A B a B and A B. So now when we do the cross, we're going to have, um, a be lower case Lord G's Capital, Capital, Capital, capital. A little case lower case locates lower keys. And it's just gonna be the same thing for Waltham because they all have the same rows and columns. So all of them are going to have headers. I Cassity there would be headers. I guess so. The F one. I'll speak of hundreds and 100% chance of having the genotype a baby. So now we have to do cost this again to get her F two offspring. So we do. Uh, we have That's cool. Down a little bit more. So we have a B capital dabble. Uh, we'll have like this. You can have it like this and you can have it like this. And then we're gonna have it seem thing over here like this. So now let's do the cross and see what we get. So we get capital, Capital, Capital, Capital, A, B, B, A A, B A, B B, you A B B and boredom. A baby. Okay, so this is what our F two generation will look like. So now we have to. You sister determined the funeral. Typical ratios, and so we could go ahead and count this up. But I already know that the ratios for this are going to be in the form 9 to 3, 321 And so this adds up to a total of 16. And let's just double check that just to make sure we have four rows and four columns. It's a four by four, which is equal to 16. So that does add up eso Thank you for watching. And I hope this helps

So this problem is asking us to do a die hybrid cross because we're looking at things with two characteristics. We're looking at two different things. So, for example, we could be looking at, um, we could be looking at P flower color and then the pea plant size. So here we have a dominant Who is I is, and another home is obvious. Dominant with the home is that it's recessive home, his eyes recessive. So a baby by a beauty. How do we do this, Dahab? It cross. And this will give us the F one. Because these are parental. Z F one is the first offspring. So what we're going to use is the foil method to determine the different comment nations of gaming's we would get from each of these. Coyle's transfer first out in and last first refers to the first of these two different characteristics. So this is the first of May, and this is first would be based. We get a B, then we would do out. So the two outer ones. Then we would do the two inner ones, and then the last two. This is the last of a A and This is the last of BB and in this case they're all the same because all of them are dominant. But it could be different if there were more variations. So we have all the possible gamma combination. So these basically represent the gaming since again May only has one alil for each gene. So if this is one gene, they each have one alil from the ageing and one little from the beachy. And we're going to do the same here first with first out in and last. Now that we have, all of these were going Teoh set them up on our across. So this is hands four columns and four rows. So we would put every single one here and it doesn't matter which one goes on top as long as they stay together. All of these are in one row and all of these aren't another rule. Don't wait. I mean, just to use the black to keep consistency and now we're going to combined. So we get one being dominant and one recessive a and then we have one dominant being one recess it be This is going to be the same for every single one. They're all going to be like this since all of our game, it's were the same. So we don't really have to repeat if you want to, you can. But they're all going to meet the same. So our F one gives us 100% being a headers, I guess for a and hairs I use for B. So for our f to we have to cross headers. I guess a headers XB with another header. Is I just a header side speak and that will give us our F two. So again, we're going to do foil. So we're gonna do a with being our first with their first and we get to dominant ones. Then we're gonna do our two outer ones and we get a capital A in the lower keys be Then we do our inner ones. Oh, sorry. That was wrong for inner one tear. So you have to make sure that you have two different, um, like two different Helios. You have one oil from one gene and one Elio from the other. Since game, it will only have one alil from every gene. So I almost made the mistake of doing the same letters together to a wheels and that would be incorrect. And then we'll do our last. And on this side, it will be the exact same. And now we'll set it up here, so we'll have I'm gonna put all of these on the top. But again, it doesn't matter which one goes on top as long as they're all staying on the same side and the rest over here and now we're going to combine. So we have a capital a Capital A. We have cattle being a capitally, and this will show us every possible combination between these Grammies and these Grammies. So let's say this gaming this game came together. This is what we would get in our deployed organism because it would have to Leal's for every GE. And hopefully you get the idea. So I'm just going to quickly fill out the rest of this table by simply just combining, could you? So you can see that there's a lot more variation in our F two generation than there was in the F one because we had more variety in our game. It's so this is our completed table and now we have to figure out the few netiquette ratio, this whole thing. So what are the different finna types we can have with our two traits? Well, one feeding time that we could have is that FINA type where we have a a dominant if you know, type expressed and they'd be dominant food time expressed. So we don't know what the be dominant Finn type is. I'm just calling it the dominant FINA type for being in the dominant punitive for a So in which and how many instances is that the case? What? We have one here where there's a dominant A being expressed and dominant be being expressed another one here. And even though they're not all dominant, this dominant. We're talking about the FINA type here. So what's being expressed? A dominant A is being expressed in The dominant eyes Be is being expressed here. The process of B is not being expressed. It's and again here, here, here, not here, since this is a recess if homeless, I guess genotype for being so that recessive finished tied for that gene is being expressed in B, so we would have a dominant with the recessive. So that time Well, we're looking for right now, but this one we are here, we would have. And yes, and one more here. So that gives us nine nine of this particular finish type another Finn type we could have would be in a recessive. So the recess ITV finna type of the gene A being expressed with the dominant fan Tai being expressed in the B gene. So we have that happening here once here as well. And here, so three times. And then we could have opposite. We could have an a dominant feeding type being expressed with the recess of FINA type of the B. So that happens here. Yes. So have bins once here and here and here. So three times. And finally, let's look at if there was a recessive with a be recessive and that happens only once right here we haven't a to home in Vegas A and homes, I just be almost home, was, I guess, recessive a homes. August recess of being So that means that the recess of trade is being expressed for both of the characteristics we're looking at. So that means they're few. Knittig ratio will be nine by three by three by one with nine representing our dominant Dummett three representing our A being recessive, you being dominant, the other three being the A, being dominant and being recessive, and then one in which we have both characteristics expressing the recessive trait.


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