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Mendel studied the structural traits of his plants. However; humans display behavioral traits in addition to simple physical traits: Research continues to attempt p...

Question

Mendel studied the structural traits of his plants. However; humans display behavioral traits in addition to simple physical traits: Research continues to attempt provide evidence that behaviora traits can be inherited. Choose one behavioral trait, or a trait that is associated with behavior; from the following: addiction; intelligence; schizophrenia; homosexuality, warrior genes or altruism: Provide current research on the heritability of such behavioral genes, and please use APA format in you

Mendel studied the structural traits of his plants. However; humans display behavioral traits in addition to simple physical traits: Research continues to attempt provide evidence that behaviora traits can be inherited. Choose one behavioral trait, or a trait that is associated with behavior; from the following: addiction; intelligence; schizophrenia; homosexuality, warrior genes or altruism: Provide current research on the heritability of such behavioral genes, and please use APA format in your reference(s).



Answers

What property distinguished Mendel's investigation from previous studies? a. Mendel used true-breeding pea plants. b. Mendel quantified his results. c. Mendel examined many different traits. d. Mendel examined the segregation of traits.

Okay. What made Mendel his experiments unique compared to those before him? Well, let's start by noting the two scientists who preceded Mendel. The first was Joseph cold, redder, and the second was t a night now both coal writer and night as well as Mendel. All three of them, uh, performed crosses in plants to produce hybrids. And then they crossed the hybrids and observe the traits that in present, So all three of them observed traits in the progeny, the offspring. Mendel wasn't unique in that sense. They all observed traits in the project. Um, so there must be something else that made mental unique. Okay, so let's continue to look at what these two predecessors did night. He specifically used true breeding pea plants. And I've drawn a picture of a people, and over here, very simplified picture. Um, And what? I mean when I say he used true beating people Ants Is that those people ants when self fertilised. For multiple generations, all the offspring in each generation looked the same. So if this pea plant was self fertilised for multiple generations, they'd all look roughly the same in a color, texture and so on. Um So Mendel, uh, was not the first to use true beating people. Ants, uh, night used to repeating to true breeding people ants before him. So Mendel wasn't unique, Uh, for that or with respect to that in his experiments. Um, now, night, uh, crossed a true breeding yellow pea plant. Like I've drawn here, uh, with a true breeding green people in, like I've drawn here. And he found that all the progeny, uh, were yellow. So he then selected just to use a different color here. He then selected just to, uh of those progeny and performed across with them. And he found that Ah, many of the people ants came out, uh, looking the same in color. They were yellow, but occasionally he would observe a green one. Uh, so, um, the Thea the fact that some of the offspring exhibited one form of the trade yellow color and other offspring exhibited a different form of the trade, which was green color. Um, night was actually the first to observe what is called segregation. Um, so again, just that just meeting some offspring exhibit one for mother offspring exhibit a different form of the trade. So mental wasn't the first to find any of these, but there is something that set Mendel apart. And that was that. Mendel quantified his results. Um, unlike Cole writer and night who, uh, merely, uh, gave qualitative results. They reported things like color and the texture of the seeds, things like that. Qualities of those people ants. But Mendel actually, uh, counted how many offspring war produce and determined the ratio of those offspring. And that part's very important. Mendel determined the ratios, and it's actually those same ratios that, um, have a large influence on the kind of experiments that we observed today. Um, so that's what Mendel uh, that's what separated Mendel from his predecessors. He quantified his results, whereas the others merely looked at the qualitative data.

Why do we call Mendel the father of genetics? Is it because he was the only person looking at an X. Variation at his time? Because his research was thorough as included quantifiable data. Because he is pea plants when others were using cows and corn. Or because he studied both the F. One and F. Two generations. So Mendel wasn't the only person looking at variation. So it's not A. And C. Is true in that he was using peace whereas others were using other organisms. But this isn't why we consider him father genetics. It's not his choice of organism. But made him special. It's but he narrowed down on single gene traits. He developed a lot of data based on it. So enough data to find the um Bennett Ipic ratios and that's what's really special about mental. Is he shows through careful experimentation the ratios in the offspring of the flower color, for example, that really helped us pin down how inheritance was working. So he was involved. So then both F. One and F. Two generations was important to this. But the real reason he's private genetics is big because his research was sector and included in quantifiable data. That allowed us to work out the mechanics of what was going on.

Question 17 chucking vile cracker mindo, who is constricted other genetics as he studied the inheritance of P plants. So he's looking at smooth first Wrinkle Peoples, and he accepted the ratio of three pee pants, smooth people and sixties made for our radio. One wrinkle so he observed in this one affair, meant 423 smooth, 133 wrinkled peas. Um, and the data was produced so that it was random. Independent conditions were meant, As you know, we're going to carry out a chi square goodness it. He expects there to be in the percentage job 0.73 for every, um, for smooth and 0.25 for wrinkles. But the obscenity here 423 smooth 113 medical. It's free at those up. That's 556 when we take our percentage, multiply that by 56 and get our expected values, which is 417 in 100 I just by looking at it, they look fairly close, but let's for for my cry score Destin. See, there's a difference. So take observed winds expected and square it for a true 23 minus 4 17 squared, divided by 4 17 Intending for wrinkle. The 1 33 minus 1 39 squared minus 1 39 We could, uh, hi. Squared value off 0.3452 Since we have two different factors here, he's attract one and get a degree of freedom of 12 minus one equals one and you see the table. We calculate the P value, which is 10.5568 which is a fairly fairly large value They were. We cannot reject her. Nope. I've offices that there is no difference between the two.


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