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- A phenotypically normal individual has the following combinations of normal and abnormal chromosomes:The normal chromosomes are shown on the left in each pair.Suggest a series of events (breaks, translocations, crossovers, etc.)that may have produced this combination of chromosomes.What are the major differences between mitosis and meiosis? Explain this both in terms of the different steps of each event and with regards to the final products of each event. Remember to mention the events which are unique to meiosis and why they are significant.Nondisjunction which can affect sex chromosomes as well as autosomal chromosomes as a common cause of genetic disorders. Use the space provided to illustrate the process of nondisjunction with the end result being that one cell exhibits in the monopsony me while other one exhibits trisomy. Hint: a sperm will fertilize the egg and add it’s chromosome in the last step)
- Why is meiosis important? Differentiate it with mitosis. Explain in a detailed manner.A Diagrammatic Comparison of Mitosis and Meiosis Name: Draw chromosomes in the following cells to represent the various stages of mitosis and meiosis for an organism with a diploid number of 4. Label your diagrams with descriptions of the chromosomes and the key events that are occurring during this stage of the process. Mitosis Interphase Prophase Metaphase Anaphase Telophase OOOA prairie grass species called "little bluestem" is tetraploid. It has four complete sets of chromosomes. There are ten kinds of chromosomes; in other words, each complete set of chromosomes has a total of 10 chromosomes. A single somatic cell (e.g., a cell in a leaf) will have 40 chromosomes, 4 of each kind of chromsome, i.e., 4 of the number 1 chromsome, 4 of the number 2 chromsome, etc. The illustration below shows prophase of meiosis 1 in chromosome number 10. In a diploid cell, there would be one tetrad (group of 4 chromatids) for each kind of chromosome. For example, there would be one tetrad for chromosome 8, one for chromsome 9, etc. When the tetraploid little bluestem undergoes meiosis, how many of chromosome number 10 will each sperm cell carry?
- Give biological term for a pair of corresponding chromosomes of the same size and shape , one from each parent.Considering the following chromosome which is represented as a series of genes on each arm separated by the centromere. Describe the type of mutation required to produce each of the mutant chromosomes below. ABCDEFG*HIJKLMNTransmission of information from cells to cell or from parent to progeny that is not encoded in DNA. Choose one Epistatic inheritance Epigenetic inheritance Meiotic inheritance Genetic inheritance.
- Once the chromosomes are attached by a centromere they are each considered to be chromatids. true or falseHuman cells normally have 46 chromosomes. For each of the following stages, state the number of chromosomes present in a human cell: 1. Metaphase of mitosis 2. Metaphase I of meiosis 3. Telophase of mitosis 4. Telophase I of meiosis Telophase II of meiosisThe following normal human sister chromosomes DO NOT necessarily have in common with each other: Same Genes, Same Size, Same Alleles, Same Banding Pattern.