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DRAW IT The diagram shows a cell in meiosis.
(a) Label the appropriate structures with these terms: chromosome (label as duplicated or unduplicated), centromere, kinetochore, sister chromatids, nonsister chromatids, homologous pair (use a bracket when labeling), homolog (label each one), chiasma, sister chromatid cohesion, and gene loci, labeling the alleles of the F and H genes.
(b) Describe the makeup of a haploid set and a diploid set.
(c) Identify the stage of meiosis shown.
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- Imagine a precursor germ cell (which will become a sperm or egg cell) from a diploid organism. Before the cell undergoes meiosis, it has a total of 40 chromosomes. Which of the following are true for this cell? Select all that apply The value of n is 40 After the first meiotic division, the cells will be haploid After the second meiotic division, there will be four cells When meiosis is complete, the sperm/egg will have 20 chromosomesarrow_forward+ 1. Complete the table below for chromosome and chromatid number for a human cell: Mitosis Prophase Metaphase Anaphase Telophase End of Mitosis Meiosis I Prophase Metaphase Anaphase Telophase End of Meiosis I Meiosis II Prophase Metaphase Anaphase Telophase End of Meiosis II Chromosome Number Chromatid Numberarrow_forwardA simple diagram indicating the alterations in genetic content throughout mitosis could be prepared as follows: 2n 2n 2n duplicated 4n 2n above). Include all of the cells generated at each stage. (G1) (S phase) (G2, Prophase, Metaphase) (Anaphase) (Telophase) (Cytokinesis) prepare a similar diagram for meiosis, starting with a diploid cell in G1 (asarrow_forward
- Mitosis produces 2 daughter cells that are identical to the starting cell. Explain how meíosis is different using this diagram to help you. 1) How many cells are created through meiosis? 2) Describe the chromosomes in each gamete at the end of meiosis? Are the set of chromosomes in a gamete identical to the starting cell like they are in mitosis? Are there the same number of chromosomes in each gamete as the starting cell? Starting cell's chromosomes: 1А, 1B, 2A, 2B Interphase After the S phase of interphase: 4 pairs of sister chromatids 1A 1A 1B 1B 2A 2A 2B 2B Meiosis has 2 rounds of cell division 1A, 1A, 1B, 1B, 2A 2B 2A 2B tv MacBook Air DII DD 80 888 F9 F10 F6 F7 F8 F4 F3 * #3 2$ % & 8 9 3 4 E T. Y F G J K * CO Rarrow_forwardMetaphase and Meiosis are distinct cellular processes. Draw and label two cells that illustrate the cell pictured below in Metaphase of Mitosis and Metaphase I of Meiosis. Indicate the position of all chromosomes, centrosomes and microtubules.arrow_forwardcell type: 9) Label the figure below. Chromosome number: cytokinesis by: division type: А- В- С- D- E- the halves the number of chromosomes, and at the same time, stage. The result is 10) daughter cells event that causes genetic diversity takes place in called (n? 2n?). An organism with two of each kind of chromosome is said to be: (3) tetraploid (1) haploid (2) diploid (4) polyploid. In multicellular organisms, mitosis results in: (1) reproduction (2) growth and repair (3) sperm and egg production (4) fertilization. If an organism produced an egg that had 20 chromosomes, the body cells of that organism should have: (1) 10 chromosomes (2) 20 chromosomes (3) 30 chromosomes (4) 40 chromosomes. 11) is what helps us grow and is why we are all unique! Human female karyotype contains .... (number) pairs autosomal and sex chromosomes. separate to go opposite poles in Anaphase in mitosis, while in Meiosis in AnaphaseI. (how many?) 12) If a diploid parent cell with 8 chromosomes (2n=8)…arrow_forward
- Please asaparrow_forwardA diploid organism has chromosomes. Use colours or symbols to show which chromosomes are which throughout each stage. Draw and label the chromosomes, sister chromatids, centromeres, spindle fibres, tetrad, crossing over and nucleus where appropriate. Prophase I Metaphase I Anaphase I Telophase I Prophase II Metaphase II Anaphase II Telophase II O曲T回A@ 28 Ai MacBook Pro K 2$ & 2 3 E R Y D F G K V B M command MOSISO commandarrow_forwardMatch the phases of meiosis with the correct description Metaphase I [ Choose ] [Choose ] Sister chromatids line up along the center of the cell. Cytokinesis produces four unique daughter cells, spindle dissolve, and the nuclear envelope reappears. Spindle fibers pull homologous pairs of chromosomes apart. Nuclear envelopes of daughter cells dissolve, and chromosomes condense. Spindle fibers pull sister chromatids apart. Homologous pairs of chromosomes line up at the center of the cell in tetrads. Cytokinesis produces two daughter cells, spindle dissolves, and nuclear envelope reappears. Nuclear envelope dissolves, DNA condenses and crossing over occurs. Anaphase II Prophase I Telophase I [Choose ] Prophase II [ Choose ] Telophase II [ Choose ] Anaphase I [ Choose ] Metaphase II [ Choose ] > > >arrow_forward
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