Counting Chromosomes 1. A cell in G₁ of interphase has 6 chromosomes. How many chromosomes and DNA molecules are found when this original cell progresses to the following stages: Stage G2 of Interphase Prophase of mitosis After cytokinesis following mitosis G₂ of Interphase Prophase I of meiosis Assume that cell does MITOSIS # of Chromosome After cytokinesis following meiosis I Prophase II of meiosis After cytokinesis following meiosis II Assume that same cell does MEIOSIS 3 Cell A B C 2. All of the following cells come from the same species and are shown in various stages of mitosis OR meiosis. Answer the following questions based on the pictures. Cell A B C B C A What is the diploid number of chromosomes in this organism? 4 cew A-Anaphase 1 cef cen division melos is Give the name of each stage of mitosis or meiosis for each cell shown. # of DNA molecules Stage Anaphase 1 of melos is. Anaphase of mitos is Anaphase 2 of melos is 3 Give the number of chromosomes and the number of DNA molecules per cell present at the stages represented. # of Chromosomes # of DNA Molecules 3

Counting Chromosomes 1. A cell in G₁ of interphase has 6 chromosomes. How many chromosomes and DNA molecules are found when this original cell progresses to the following stages: Stage G2 of Interphase Prophase of mitosis After cytokinesis following mitosis G₂ of Interphase Prophase I of meiosis Assume that cell does MITOSIS # of Chromosome After cytokinesis following meiosis I Prophase II of meiosis After cytokinesis following meiosis II Assume that same cell does MEIOSIS 3 Cell A B C 2. All of the following cells come from the same species and are shown in various stages of mitosis OR meiosis. Answer the following questions based on the pictures. Cell A B C B C A What is the diploid number of chromosomes in this organism? 4 cew A-Anaphase 1 cef cen division melos is Give the name of each stage of mitosis or meiosis for each cell shown. # of DNA molecules Stage Anaphase 1 of melos is. Anaphase of mitos is Anaphase 2 of melos is 3 Give the number of chromosomes and the number of DNA molecules per cell present at the stages represented. # of Chromosomes # of DNA Molecules 3

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter6: Reproduction At The Cellular Level

Section: Chapter Questions

Problem 1ACQ: Figure 6.4 Which of the following is the correct order of events in mitosis? a. Sister chromatids...

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Figure 6.4 Which of the following is the correct order of events in mitosis? a. Sister chromatids line up at the metaphase plate. The kinetochore becomes attached to the initotic spindle. The nucleus re-forms and the cell divides. The sister chromatids separate. b. The kinetochore becomes attached to the mitotic spindle. The sister chromatids separate. Sister chromatids line up at the metaphase plate. The nucleus re-forms and the cell divides. c. The kinetochore becomes attached to metaphase plate. Sister chromatids line up at the metaphase plate. The kinetochore breaks down and the sister chromatids separate. The nucleus re-forms and the cell divides. d. The kinetochore becomes attached to the mitotic spindle. Sister chromatids line up at the metaphase plate. The kinetochore breaks apart and the sister chromatids separate. The nucleus re-forms and the cell divides.
Identical copies of chromatin held together by cohesin at the centromere are called.______ histones nucleosomes chromatin sister chromatids.
Comparing Mitosis and Meiosis: How many cells at the end? The ploidy of the end cells? The purpose of the process (when is it used)? The differences in the steps of each process (eg - how are metaphase, metaphase I, and metaphase II different)?
Mitosis DrawingIn this assignment you will track and draw the chromosomes of a diploid organism through all the stages of mitosis. Make sure to draw the alleles for genes A and B on the chromatids in every stage. For mitosis, remember that many events are going on in the cell that are relevant besides just the movement of chromosomes, so please fill in the cell with pertinent structures such as centrioles and spindles.
38. Ture or False- Throughout mitosis, sister chromatids are identical, but sister chromatids are not identical to each other throughout meiosis.
Objective: To review the phases of mitosis with the understanding that in a real tissue or a non-synchronized cell culture, different mitotic phases and cells in interphase will be observed at a certain time. Interphase is the period between mitotic events; all other phases are part of mitosis and their individual probabilities add up to the total probability of seeing cells undergoing mitosis. Pay attention to the individual probabilities for cells in each phase of the cell cycle. Problem N° 10 For a certain type of animal tissue, the probability of a randomly selected cell being in a particular stage of the interphase/mitosis cycle is given by the following table: Stage Probability Interphase 0.5 Prophase 0.1 Metaphase 0.05 Anaphase 0.2 Telophase 0.15 Suppose you examine 100 cells at random from this tissue. A) How many cells do you expect to see in metaphase? _____ cells B) You have selected a high magnification (2000 X) in your…
I need help with biology question, Here is a copy of the image below. (type in the correct letter from the diagram: (A,B,C,D, or E) What is the correct chromosomal condition at late prophase (prometaphase) of mitosis? _____________ What is the correct chromosomal condition for one daughter nucleus at telophase of mitosis?___________ What is the correct chromosomal condition for one gamete nucleus at telophase of meiosis II?__________
Question: How chromatids and centromeres are connected together? N.B: Which substance is responsible for the bonding of chromatids and centromeres. Don't Answer like this:Due to continuous dehydration nuclear chromatin condenses to form visible thread like structure, known as chromosome. Then each chromosome divides longitudinally into two chromatid. The sister chromatids are joined together at their centromere.
MODIFIED TRUE OR FALSE. In the following items, read each statement carefully. I. Mitosis and meiosis are two cellular process that might be quite similar in terms of stages, but technically, different process that have two different functions. II. As an example, mitosis involves the production of genetically different daughter cells whereas meiosis involves the production of genetically identical daughter cells. a. The first statement (I) is correct and the second statement (II) is wrong b. The first statement (I) is wrong and the second statement (II) is correct c. Both statements are correct d. Both statements are wrong I. The continuity of life from one cell to another has its foundation in the reproduction of cells by way of the cell cycle.II. The cell cycle is an orderly sequence of events in the life of a cell from the division of a single parent cell to produce two new daughter cells and are highly conserved across eukaryotes.…
MATCHING TYPE : (Match A to B) A; A. Mitosis- Metaphase B. Mitosis - Prophase C. Meiosis-Prophase I D. Mitosis -Telophase E. Meiosis – Metaphase I F. Mitosis - Interphase G. Mitosis - Anaphase H. Meiosis – Telophase II B; Homologous chromosomes attach to spindle fibers fromopposite poles. Nuclear envelope is intact and encloses the nucleus. Genetic exchange between nonsister chromatids of a homologous pair, occurs. Centromeres of the sister chromatids separate
Including the sex chromosomesthe chromosome number of a normal human cell is 23 and the chromosome number of this HeLa cell is
Chioces for each statement: hyperproliferation or cell cycle arrest; cell cycle arrest or accumulatio of dna; hyperproliferation or growth arrest; increase or decrease