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Question 12 ptsChoose the right answer from the available answersHomologous chromosomes synapse and [Choose crossing over occurS: The statement is true for mitosis ...

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Question 12 ptsChoose the right answer from the available answersHomologous chromosomes synapse and [Choose crossing over occurS: The statement is true for mitosis and meiosis Il only: The statement is true for anaphase only Homologous chromosomes separate This statement is true of both meiosis and meiosis Il_ from each other: The statement is true for mitosis and meiosis The statement is true for prophase only:Separation of chromatids from each other Choose UcCuIZThis process is preceded by cop

Question 1 2 pts Choose the right answer from the available answers Homologous chromosomes synapse and [Choose crossing over occurS: The statement is true for mitosis and meiosis Il only: The statement is true for anaphase only Homologous chromosomes separate This statement is true of both meiosis and meiosis Il_ from each other: The statement is true for mitosis and meiosis The statement is true for prophase only: Separation of chromatids from each other Choose UcCuIZ This process is preceded by copying (replication) of the DNA Choose



Answers

Which of the following statements accurately describes a difference between mitosis and meiosis? a. Mitosis may produce diploid cells, whereas meiosis produces haploid cells. b. Homologous chromosomes synapse during meiosis but do not synapse during mitosis. c. Crossing over commonly occurs during meiosis, but it does not commonly occur during mitosis. d. All of the above are correct. e. Both a and c are correct.

When do we get pairing of homologous chromosomes? Is it during mitosis mitosis one uses two or all of the above. So the pairing of Marcus chromosomes really only occurs during mitosis specifically during pro phase one. So we're looking at B Marissa swamp, and this pairing of the homologous chromosomes is synopsis, and it allows crossover, which is great for genetic diversity and also makes it more likely. But we will get for correct, um, selection of chromosomes in each lauter.

So this question is asking which of the following stages involves pairing of duplicated homologous chromosomes s what I've drawn here are the stages of my hostess. So my hostess one pro fes meta phase anna phase tell a phase and my house is too pro fes medicated to enter phase Tell a phase again. Um, and my hostess one involves what's called a reduction division or, ah, separation of homologous chrome Selves. So during pro fes wth e chromosomes condense and this scenario there's actually the chromosome number is actually only one. But for each chromosome or the one chromosome that there is, there's a maternal and paternal home look. And then each of the home logs have been duplicated such that there are two chroma tits. So you see four lines here, but it's actually only one chromosome with two, uh, homologous chromosomes, each composed to cram it. It's now my hostess. One is unique in that during med afis, the, uh duplicated homologous chromosomes line up along the meta face plate and what's called a by Vaillant or a 10 Tran. And this Onley occurs, um, in throughout Myers, this one. This does not occur during my house is too warm. I Oh, cece. Um, because this is the on Lee. My house is one of the only time when you separate homologous chromosomes to form hap Lloyd daughter sense during both my hoses to end my toe. Sis, what lines up along the meta face plate? Our individual duplicated chromosomes, each composed of two primitives and the identical chroma Tibbs are what, uh, separate two opposite poles of the cell, not different chromosomes. So the correct answer to this question is, um, being that the pairing of duplicated homologous chromosomes Onley occurs in my house. This one as I've drawn here during metaphysics stage. Uh, because Thies this formation of Abi Vaillant is getting ready for the reduction division that's unique to my house, this one.

Let's talk about my Asus one. So it's important for us in my office one. What my ass is one to remember that there are something, there's something called homologous chromosomes and homologous chromosomes, our chromosomes that are identical to one another. So if I have, let's draw this uh replicated chromosomes shape that we're really familiar with these, this and this are homologous chromosomes and we also need to know the difference between that and something called sister vomited. Now if we have the same kind of drawing this little piece right here and this little piece right here, our sister committed. Now the thing about these are sister primitives are effectively exactly the same in terms of DNA, but homologous chromosomes are not exactly the same, But they are the same chromosome number. So let's say this is chromosome 12. So both of these are chromosome 12. However, one of them is not exactly identical to the other. So now that we've established that we can talk about 10 tracks. So whenever we have my S. one, we have the chromosomes lining up on the meta phase plate to split. So you're going to end up having something like this with our chromosome line up, something like this, and this is the meta phase plate. So it's going to split right about here. But the process of these chromosomes coming together is called synapses. So it's important to remember synapses because that is what's going to be immediately followed by crossing over. So after these uh homologous chromosomes come together, they can then cross over and share their DNA to provide more genetic diversity. So the answer here is synopsis.

Here we have these stages of mitosis and we have to match them to the description. So we have trophies. To yellow face meta phase one, metal face two. It's a phase and a face to for phase one and phase one. Let's look at the description is first of all, a homologous chromosomes aligned at the spindle of greater. So at what stage in mitosis or neurosis does this happen? Um So that's going to happen in mass fees one but the airline but not mess phase two because remember for messages to its the duplicated chromosomes not homologous ones there maybe none between moses one and two. So what does this mean? This is interface. So it may or may not happen between the two status moses si un duplicated chromosomes align ever spend equator. So again we've got a form of metaphors but this time this time it's met phase two see the chromosomes start to condense. So this is the first stage of the process we get the super coiling condensation. and that is that proof preface. New nuclei form so new nuclear form near the end. When we've already got separation of the replicated D. N. A. So after separation we get to the face. F. Homologous chromosomes move apart so this is in and a face. But we have the two forms around the face here. So the homologous chromosomes are going to be part of the face one. So that's f much as homologous chromosomes are part of messages. One also of honor phase one. Gee sister criminals move apart. Now we have a phase two so it's going to be key. H hama logs swap segments so this is rick combination and recombination happens during pro phase but it only happens during pro phase one.


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