MBS330 Name _______________________________ Mitosis and Meiosis ICA 1. Draw a diploid cell where n= 3 in each of the following stages. Be sure to indicate whether the nuclear envelope is intact and whether there are one or two centrosomes. G1 phase S phase Late Prophase Prophase of Meiosis I Anaphase of Meiosis I Prophase of Meiosis II Metaphase of Meiosis II Anaphase of Meiosis II Telophase of Meiosis II
Added by Raul P.
Step 1
Let's think step by step. Show more…
Show all steps
Your feedback will help us improve your experience
Sri K and 89 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
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.
1a. In the drawing below, the cells belong to the same organism. Next to each cell, indicate which stage of mitosis or meiosis is represented (e.g. mitosis anaphase). Assume condensed chromosomes are visible at each stage and only one cell of the process is shown, if applicable. (5 pts) a) Stage: b) Stage: c) Stage: d) Stage: e) Stage: 1b. What is the diploid (2N) number for this organism?
Bryan V.
An individual is diploid with n=3. a) Draw a cell with the appropriate number and configuration of chromosomes for the following stages: 1) Metaphase of meiosis I 2) Anaphase of meiosis II 3) Metaphase of mitosis 4) Metaphase of meiosis II 5) Anaphase of meiosis I b) In the cells above, denote two genes (A and B) that independently assort (i.e., they are on different chromosomes). For both genes, make the maternal allele dominant and the paternal allele recessive. c) Draw an alternate configuration for metaphase of meiosis I and II. Include the genes and alleles. d) Based on your drawings, which phase of meiosis is responsible for the law of segregation and which is responsible for the law of independent assortment? Explain your reasoning. e) For a cell from the individual above, how many chromatids and homologous pairs of chromosomes will it have: - Immediately prior to entering prophase of meiosis? - In one daughter cell resulting from mitotic division?
Katlin K.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD