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- Chromosomal Basis of Heredity Compare and contrast mitosis and meiosis. In what ways is meiosis II similar to and different from mitosis of a diploid cell? Explain how random chromosomal alignment during metaphase I contributes to variation in gametes produced by meiosis.Mitosis DrawingIn this assignment you will track and draw the chromosomes of a diploid organism through all the stages of mitosis. Make sure to draw the alleles for genes A and B on the chromatids in every stage. For mitosis, remember that many events are going on in the cell that are relevant besides just the movement of chromosomes, so please fill in the cell with pertinent structures such as centrioles and spindles.38. Ture or False- Throughout mitosis, sister chromatids are identical, but sister chromatids are not identical to each other throughout meiosis.
- Comparing Mitosis and Meiosis: How many cells at the end? The ploidy of the end cells? The purpose of the process (when is it used)? The differences in the steps of each process (eg - how are metaphase, metaphase I, and metaphase II different)?Separation of the sister chromatids is a characteristic of which stage of mitosis? prometaphase metaphase anaphase telophaseAttachment of the mitotic spindle fibers to the kinetochores is a characteristic of which stage of mitosis? prophase prometaphase metaphase anaphase
- Metaphase in mitosis is similar to what stage in meiosis? a. prophase I b. prophase II c. metaphase I d. metaphase II e. crossing-overQ1: Prior to going through meiosis, the nucleus would look like which letter? (Write just the letter below.) Q2: Next, the mitotic spindle fibers start to organize into centrosomes and these centrosomes pull away from each other, but since these images just show the nucleus, you don't see that here. While the mitotic spindle fibers are reorganizing, the DNA chromosomes start to condense, which you do see here. This is represented by what image? Q3: Once the DNA is completely condensed and organized into chromosomes, homologous chromosomes pair up in a process known as synapsis. This is represented by what image? Q4: Synapsis sets the homologous chromosomes up for crossing over when homologous chromosomes exchange parts of their DNA with each other. This is represented by what image Q5: At this point, the nuclear envelope is completely dissolved and no longer visible. The homologous chromosomes are lined up in the middle by the mitotic spindle fibers. This happens as the mitotic…Question - Predict the types of gametes that are formed if non-disjunction of the X chromosomeoccurs in the 1st division. Click on all the different possible gamete types of sperm that could be formed (in terms of the X and Y chromosome, assume that the gamete is normal, having one of all the other chromosome types). X (normal) Y (normal) no X or Y (abnormal) XY (abnormal) YY (abnormal) XX (abnormal)
- Obvious differences in the position of chromosome copies are clear during metaphase of mitosis and meiosis. How would you describe these changes?Normal events in mitosis gives rise to daughter cells with exactly the same chromosome number and genetic material. What may be expected to happen chromosomally and genetically to: an unfertilized egg that undergoes mitosis, but fails to undergo cytokinesis? 2. a cell with a chromosome that lost its centromere?MODIFIED TRUE OR FALSE. In the following items, read each statement carefully. I. Mitosis and meiosis are two cellular process that might be quite similar in terms of stages, but technically, different process that have two different functions. II. As an example, mitosis involves the production of genetically different daughter cells whereas meiosis involves the production of genetically identical daughter cells. a. The first statement (I) is correct and the second statement (II) is wrong b. The first statement (I) is wrong and the second statement (II) is correct c. Both statements are correct d. Both statements are wrong I. The continuity of life from one cell to another has its foundation in the reproduction of cells by way of the cell cycle.II. The cell cycle is an orderly sequence of events in the life of a cell from the division of a single parent cell to produce two new daughter cells and are highly conserved across eukaryotes.…
