Fruit flies (Drosophila melanogaster) are a common model organism in genetics labs. A somatic cell in D. melanogaster has 2n = 8. How many chromosomes will a D. melanogaster female gamete contain?
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- 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? RMeiosis In this worksheet, you will review the steps of meiosis and view video simulations of this type of cell division. You will also view an onion root tip and calculate the percentage of cells at each of the stages of cell division. Stages of Meiosis Visit http://www.biology.arizona.edu/cell_bio/tutorials/meiosis/main.html for an additional review of Meiosis Part 1: Reproduction 1. Give an example of asexual reproduction. 2. What is a clone? 3. What is the difference between haploid and diploid? Part 2: Chromosomes in a Diploid Cell 4. What is the diploid chromosome number for humans? 5. Egg and sperm cells are [haploid / diploid] Part 3: Meiosis 1 and Meiosis 2 6. Name the stage of meiosis 1 where each of the following occurs: ● Homologous chromosomes pair and form synapses. . Bivalents align at metaphase plate ● Two complete daughter cells form Nuclear membrane disappears. Nuclear membrane reforms. Chromosomes move to separate pole ● ●Platypus have an n value of 26. How many chromatids, chromosomes and tetrads does a developing gamete cell have in a platypus during metaphase I, metaphase II and in the mature gamete cells?
- A gamete cell has 34 chromosomes. How many chromosomes will be in a somatic cell? How many tetrads are formed in meiosis 1?RNING SERVICES SQU LIBRARIES SQU PORTAL ATTENDANCE ENGLISH (EN) Answer: AMYLOSE The sperm of Panthera leo contains 19 chromosomes, which of the following is/are true about somatic cells? Select one or more: a. The Panthera leo cells normally contain 38 homologous chromosome pairs b. Panthera leo normally has 38 chromosomes in its body cells c. There are 38 sister chromatids per cell in G2 phase d. The somatic cell contains 38 sister chromatids e. There are 76 sister chromatids per cell in G2 phase A mutation in genes responsible for microtubule formations will most probably prevent the cells from passing metaphase of mitosis.A cat germ cell has a haploid number of 19 chromosomes.Complete the following table by stating the number of cells, the number of chromatids, and the number of chromosomes at the end of each of the following stages of meiosis and mitosis. (Please note this is an emply chart, I'm unsure why it got declined last time because it is not graded) Meiosis Meiosis Mitosis Prophase I Telophase I Telophase Number of cells Number of Chromatids Number of Chromosomes
- The diploid chromosome number for the somatic cells of a frog is 26. What would that number be after three generations if meiosis did not occur before gamete formation.The process of meiosis occurs during the cell cycle production and results in four unique diploid four identical diploid cells four unique haploid cells four identical haploid cells . To maintain the correct number of chromosomes in offspring, male and female gametes contain the same number half of the number twice the number of chromosomes as somatic cells. During fertilization, gametes fuse to form a diploid haplid cell called a zygote.A diploid cell undergoes meiosis to form the four gametes shown below. H OHhQq OhQ q Part 1 What is the genotype of the diploid cell? Hq OHHhhQQqq 99 HH H QQ Part 2 Arrange the chromosomes for the diploid cell as they must have lined up during metaphase I of meiosis in order to make the gametes shown above. The vertical dotted line represents the metaphase plate. hh q HH X Q h Q h
- The function of Paclitaxel was described in the simulation as preventing the microtubules from forming properly during anaphase. How would this effect cells that are in the G2 phase of the cell cycle? Could Paclitaxel have an effect on the formation of gametes? Explain your answer.The cells seen below were stained with Acetocarmine. Scales indicate 20 micrometers. Please explain what stages of meiosis are visible in cells labelled A through F. Give reasons for each stage of meiosis you consider the cell to be in. A В C D E Fnormal somatic cells of an organism have 100 chromosomes. how many chromosomes will be present in the first polar body of that organism during gamete formation