Part a assume that in a series of experiments plants with...

Part A Assume that in a series of experiments, plants with round seeds (W) were crossed with plants with wrinkled seeds (w) and the following offspring were obtained: 220 round and 180 wrinkled. What is the most probable genotype of each parent? Both parents are WW. Both parents are ww. Both parents are Ww. One parent is WW, the other is ww. One parent is ww, the other is Ww. One parent is WW, the other is Ww.

Transcript

00:01 In order one second question, let's talk about inheritance.

00:03 In pee plans, ground seeds is dominant over green gold seeds.

00:07 Green pot is dominant over yellow pot.

00:10 In seed shape and pot color are inherited independently.

00:12 So when you have the homozygous domino like this, or the heterocygous, you're going to have round seeds like this, and the homozygote is for green gold seeds.

00:28 When you have the homozygoyles for w or the heterocygote, you're going to get green and the homozygote is as if it's for yellow.

00:38 Now it says, um, so let's look at the questions.

00:43 Okay, here you have that draw crossing.

00:47 It says that you have, that you have produced 405 ground seed and green part.

00:53 It means ground and green.

00:56 So practically all of the offspring are ground and green.

00:59 So if all of the opring are ground and green, then it means that this is a genotype of the optic.

01:04 Now, so remember that an organism in her head is one all right from each parent.

01:09 In this case, the dominant here can come from one parent like this, and the second all right can come from a second parent.

01:17 And the same for the gadll.

01:19 So in this case, what are the possibilities of the offspring? in this case, the possibility of the offspring can be either like this, like this, or can be like this and like this, or maybe it can be like this or like this.

01:39 So these are the four possibilities for the offering.

01:42 So according to this, the parents can be, for example, for the first cross, for the first offering, you can have that both parents should be.

01:56 Mostlygo for both traits.

01:58 This is one possibility.

01:59 A second possibility for getting this genotype here in the offering is that one parent to be like this and like this.

02:10 And the second parent to be homozygo excessive for both traits.

02:12 You're going to get that all of the offspring are going to be heterocycles for most traits.

02:16 Another possibility is that one parent is homocygous dominant and g g and the opposite here.

02:25 Homocygousousousousous dominant for g.

02:28 So you're going to get that all of them are going to be heterocycles for both traits.

02:33 Then for the third possible genotype you have that in this case, in this case that the parent or the offspring is homocygous domino for r, thinking it means that both pines are homocygous dominant for r and one parent is homozygous dominant and the second parent is homocygous decisive for r for g i'm talking okay so in the last cross is you have the homozygous dominant for one parent and the homozygous domine for one parent and the homozygous dominant for both files so this is what you have now the second cross it is 227 ground seat it means 227 round and green means, or well, in this case they are using the tabbages.

03:19 So in this case, just change all of this by daveo.

03:25 I was using the rl instead of daveu in the same here, like this.

03:57 Well, the off -frame you are not going to use them anymore.

04:01 So this is what you have.

04:02 For the next cross, you have round and green.

04:05 It means you get some offspring like this.

04:09 You also get some offspring that are round and yellow.

04:12 It means round and yellow.

04:17 Sorry, i'm using the r too much.

04:20 And also for the g, it is y.

04:22 Okay.

04:22 So just let's change this to why.