2. Use the following diagrams to answer the next question. Models of Four Genetics-Based Processes 1 2 3 4 $X^\times X^\times XY$ Amino Amino Amino Amino acid acid acid acid Match each of the models numbered above with its appropriate label given below. Model: Label: Protein synthesis DNA Sex replication linkage Meiosis (Record all four digits of your answer in the numerical-response section on the answer sheet.) 1 Use the following information to answer the next question. Steps in Mitosis 2 3 4 3. The sequence in which these mitotic steps occur is __________, __________, __________, and (Record all four digits in the numerical-response section on the answer sheet.
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Step 1: The model in diagram 1 shows the process of protein synthesis. Show more…
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2. MEIOSIS QUESTION: a) Draw a cell containing six chromosomes (3 homologous pairs) in G1 phase (before DNA replication in S phase!). Make it clear which chromosomes are members of a pair (remember: homologous chromosomes need to be the same size and contain the same genes). b) Draw the same cell after DNA replication in S phase. c) Draw the same cell in Prophase I of meiosis after crossover (homologous recombination) has occurred. Make sure you clearly indicate where DNA has been exchanged. d) Now draw the cell in metaphase I of meiosis. e) Draw the two cells that result from meiosis I, after cytokinesis is complete. Are these cells diploid or haploid? Explain your answer. f) Draw the same two cells in metaphase II of meiosis. g) Now draw the four gametes that result after completion of meiosis II. It should still be clear which chromosomes/chromatids from parts a and b ended up in each of these gametes. 3. Draw the cell from question 2 going through mitosis. You only need to draw prophase, metaphase, and the daughter cells at the very end (following cytokinesis). Label each stage as diploid or haploid.
Sri K.
Name: Draw Mitosis/Meiosis Instructions: Complete the following two-part activity. You may use additional pages as necessary. 1. On a sheet of paper, draw three circles. You will use one circle to represent a cell in metaphase, one circle to represent a cell in metaphase I, and one circle to represent a cell in metaphase II. Assume that the parental cell for each of these contained: (i) one metacentric pair of chromosomes, (ii) one acrocentric pair of chromosomes, and (iii) one telocentric pair of chromosomes. Beneath each of your three drawings, indicate the # of chromosomes and the # of DNA molecules in the cell. 2. Reflection (Note: Completing this section is required.) What struggles did you have? What were you confused about? Is there something more you'd like to know?
Jenny W.
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