Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 12.1, Problem 1CC
How many chromosomes are drawn in each part of Figure 12.5? (Ignore the micrograph in Step 2.)
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are sex chromosomes the smallest chromosome in a karyogram? if not, then why are they last?
Figure 1 is a photography obtained after spreading the replicating Escherichia coli chromosome
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Figure 1: Photography of a replicating
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DA
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to what do correspond respectively the grey, black and dotted lines?
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Why is chromosome 21 the smallest and not chromosome 22? considering that a karyogram is arranged from largest to smallest
Chapter 12 Solutions
Campbell Biology
Ch. 12.1 - How many chromosomes are drawn in each part of...Ch. 12.1 - WHAT IF? A chicken has 78 chromosomes in its...Ch. 12.2 - How many chromosomes are shown in the illustration...Ch. 12.2 - Compare cytokinesis in animal cells and plant...Ch. 12.2 - During which stages of the cell cycle does a...Ch. 12.2 - Compare the roles of tubulin and actin during...Ch. 12.2 - A kinetochore has been compared to a coupling...Ch. 12.2 - MAKE CONNECTIONS What other functions do actin...Ch. 12.3 - In Figure 12.14, why do the nuclei resulting from...Ch. 12.3 - How does MPF allow a cell to pass the G2 phase...
Ch. 12.3 - MAKE CONNECTIONS Explain how receptor tyrosine...Ch. 12 - Differentiate between these terms: chromosome,...Ch. 12 - In which of the three phases of interphase and the...Ch. 12 - Explain the significance of the G1, G2, and M...Ch. 12 - Through a microscope, you can see a cell plate...Ch. 12 - Vinblastine is a standard chemotherapeutic drug...Ch. 12 - One difference between cancer cells and normal...Ch. 12 - The decline of MPF activity at the end of mitosis...Ch. 12 - In the cells of some organisms, mitosis occurs...Ch. 12 - Which of the following does not occur during...Ch. 12 - Cell A has half as much DNA as cells B, C, and D...Ch. 12 - The drug cytochalasin B blocks the function of...Ch. 12 - VISUAL SKILLS The light micrograph shows dividing...Ch. 12 - DRAW IT Draw one eukaryotic chromosome as it would...Ch. 12 - EVOLUTION CONNECTION The result of mitosis is that...Ch. 12 - SCIENTIFIC INQUIRY Although both ends of a...Ch. 12 - WRITE ABOUT A THEME: INFORMATION The continuity of...Ch. 12 - SYNTHESIZE YOUR KNOWLEDGE For selected answers,...
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- View the linked video and list down at least 5 terms mentioned related to the chromosomes. Describe each in not more than 10 words. https://www.youtube.com/watch?v=Bgpq5ablvioarrow_forwardIdentify the chromosomes in the spread based on their size and banding pattern. Arrange them as shown in the organized picture. I have this image that I have no idea how to start! I get what I'm looking at but I'm having trouble determine if my order is right! Please help me. I've attached the spread of the chromosomes and an example of how they should look.arrow_forwardIn an electrophoretic gel across which is applied a powerful electrical alternating pulsed field, the DNA of the haploid fungus Neurospora crassa (n = 7) moves slowly but eventually forms seven bands, which represent DNA fractions that are of different sizes and hence have moved at different speeds. These bands are presumed to be the seven chromosomes. How would you show which band corresponds to which chromosome?arrow_forward
- Figure 17.8 Do you think Dolly was a Finn-Dorset or a Scottish Blackface sheep?arrow_forwardThe organism you are working with has the following chromosomes. Place the chromosomes of this organism onto the cell below such that the diagram accurately shows a primary meiocyte from this organism in metaphase I of meiosis. Note 1: Only place chromosomes you need. You don't need them all. Note 2: You can place the "Blank Box' image if you don't think you need a chromosome at a particular position. Dashed line - the metaphase plate 1.arrow_forwardwhat is the full name of the TISSUSE TYPE at the end of the arrow for letter F? F1) Does this look like any other lettered structure on this photomicrograph? If yes, which one and how are they similar.arrow_forward
- Why is a karyogram arranged from largest to smallest? What would happen if it was arranged from smallest to largest?arrow_forwardCan you please Draw what this should look like. Chromosome Model Procedure for making a solid wire model of a chromosome: 1. Get 4 solid wires, 2 long ( 1 green and 1 red ), 2 short ( 1 green and 1 red ). This will represent 4 chromatins of a The wires of the same size are homologous. Red wire will come from the female and green wire from the male. Long green : 1a Long red : 1b Short green : 2c Short red : 2d 2. Let the cell pass the S phase. Replicate or duplicate each chromatin Do this getting another set of wires identical to the original set. Label as before. 3. Join the replicated chromatin fiber using a tape. The tape will also mark the position of the centromere. For the short chromatin, place the tape exactly at the center, while for the long chromatin, place it at ¾ from the end of the wire. This will now represent the chromosomes.arrow_forwardBelow are two pictures of perithecium on microscope slides that have been squished under cover slips so that the asci inside have spread out. In the asci, we can clearly see the tan ascospores (light colored) and wildtype ascospores (dark colored). We will perform our tetrad analysis by counting how many of the asci are non-recombinant and how many of the acsi are recombinant. We can tell which are recombinant and non-recombinant by observing the patterns of the ascospores in the asci. See the patterns of ascospores for non- recombinant and recombinant asci in the table below. Ascospore pattern of non-recombinant asci OOOO OOOOO You will count the total number of non-recombinant and recombinant asci in the two pictures below. You will only count the asci that have a star next to them because these asci can be clearly identified as non-recombinant or recombinant. Select the correct number below after you are done. Total number of non-recombinant asci [Select] Ascospore pattern of…arrow_forward
- Just number 2 pleasearrow_forwardShow the exact location of the following gene in the chromosome. Draw and label. 2p32.1 2q42.2 2p21.3 2q12.3 2p11.2arrow_forwardWhen stained with Giemsa (G-Banding staining), the centromere will be stained: Question 28 options: more robustly (dark band) less robustly (light band)arrow_forward
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