Consider the following two meiocytes in metaphase I, with crossover positions as indicated for cell A. Solid black linesindicate spindle microtubules. Assume blue chromosomes represents paternal chromosomes and green maternalchromosomes.G ND tdCell ACell Bi) How many chromosomes and chromatids were present in cell A during the G1 phase? Please clearly specifychromosomes and chromatids in your answer.ii) For cell A, list all the gametes that will be produced from this cell. Give the alleles of each gamete contained withina set of brackets. You may ignore independent assortment.iii) For cell B, list all the gametes that will be produced from this cell given crossing over. Give the alleles of eachgamete contained within a set of brackets. You may assume that no crossing over would take place.

To divide, a cell must accomplish many things: expand, reproduce its genetic material (DNA), and…

Answered: i) How many chromosomes and chromatids…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Consider the following two meiocytes in metaphase I, with crossover positions as indicated for cell A. Solid black lines indicate spindle microtubules. Assume blue chromosomes represents paternal chromosomes and green maternal chromosomes. F G N R A B D e g a B d E Cell A Cell B i) How many chromosomes and chromatids were present in cell A during the G1 phase? Please clearly specify chromosomes and chromatids in your answer. ii) For cell A, list all the gametes that will be produced from this cell. Give the alleles of each gamete contained within a set of brackets. You may ignore independent assortment. iii) For cell B, list all the gametes that will be produced from this cell given independent assortment. Give the alleles of each gamete contained within a set of brackets. You may assume that no crossing over would take place.
a. What type of cell division mitosis, meiosis I or meiosis II is shown in this figure? b. What is the diploid number of this organism? c. Provide labels for (i) and (ii)
a. Manually, using a pencil, draw a cell in anaphase II from an organism in which 2n = 2 and each chromosome is metacentric. b. Given that each G1 nucleus from this organism contains 16 picograms of DNA, how many picograms of chromosomal DNA would you expect in the cell shown here?
Consider a diploid cell that contains 7 pairs of chromosomes. Each pair includes a maternal and a paternal member (for example: AP pair) or AP B ^ n * B ^ p (two pairs). How many different combinations of chromatids are possible during the early phases of anaphase in meiosis II?
X A cell 2n-6 was undergoing cell division A What type of cell division is shown in the diagram? Meiosis or Mitosis? 05 marks B) What specifc stage of cell division is shown in the dagram Eplin how you can tell? (1.5 marks
Complete the following table for the number of chromosomes and chromatids per cell during the different stages of meiosis II for a 2n = 6 organism. NOTE: For telophase, consider the number of chromosomes/chromatids per cell after cytokinesis. Meiosis II #chromosomes/cell Prophase II Metaphase || Anaphase II Telophase II #chromatids/cell
illustrate and briefly describe the alignment, pairing, and disjunction ofsister chromatids during mitosis. Include the molecular complexes cohesin and shugoshin and the enzyme separase.
What would be the amount of DNA picograms during Prophase I, Metaphase I, Anaphase I and after Cytokinesis during Meiosis I for a diploid (2n=4)?
During meiosis I, assuming no crossing over, what chromatid combination(s) will be present at the completion of prophase? Draw all possible alignments of chromatids as migration begins during early anaphase.
During metaphase I of meiosis, tetrads align along the metaphase plate independently of each other. Therefore, there is a random “shuffle” of maternal and paternal chromosomes in the resulting gametes.The following diagram demonstrates how this works in a diploid cell with four chromosomes . Because there are two pairs of chromosomes and each pair can align in one of two ways during metaphase I, the number of possible variations in the gametes produced is , or .For an organism that is , there are three pairs of chromosomes, so the number of possible variations in the gametes produced due to independent assortment in metaphase I is , or . In an organism with a haploid number of , how many possible combinations of maternal and paternal chromosomes can occur in its gametes? Select one: a. 72=49 b. 27=128 c.17=1 d. 214=16 384
Below is my drawing of a female oocyte in anaphase I of meiosis. Use this figure to answer the following questions. A W 8 S B How many total chromatids are in this cell? R
9) A diploid cell is preparing to undergo meiosis. Before the 'S' phase, the cell has 6 picograms (pg) of DNA in it. Answer the following: a) After the 'S' phase of the cell cycle what ploidy is the cell? How many picograms of DNA does it contain? b) After meiosis I, how many daughter cells are there total? What is the ploidy of each cell? How many picograms of DNA does each cell contain?

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