BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 8.5, Problem 3MC
Summary Introduction
To determine:
The nature of chromosome in daughter cells, if centromere does not split during anaphase.
Introduction:
The cell cycle includes a series of events that occur during the cell division. Cell division takes place in two stages: interphase and M phase. M phase includes mitotic or meiotic phase. M phase also occurs in four stages: prophase, metaphase, anaphase, and telophase.
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A somatic cell has 46 chromosomes aligned at metaphase. How many chromosomes are present at anaphase, immediately after the centromeres have split?
Indicate the stage of mitosis (interphase = I, prophase = P, metaphase = M, anaphase = A, telophase = T) during which each of the following events occur.
chromatid doublets separate to individual chromosomescentriole replicatesreplicated chromosomes (chromatid doublets) are arranged in single file next to one another at the cell's equatornuclear membrane is disappearingspindle fibers form and become visiblecell plate (plant) or cleavage furrow (animal) forms and is visiblechromosomes are at opposite poles of the cell; cytokinesis is almost completedchromosomes (chromatids) first become visible as long thin strandsDNA (chromosome) replication occurs
Diagrammatically show metaphase and telophase of mitosis
using a cell that is 2n=2 which has one metacentric chromosome
and one telocentric chromosome.
Chapter 8 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Ch. 8.1 - Explain the roles of mitotic cell division,...Ch. 8.1 - Prob. 2MCCh. 8.2 - Prob. 1MCCh. 8.2 - What are the steps of DNA replication?Ch. 8.2 - Prob. 3MCCh. 8.2 - Prob. 4MCCh. 8.3 - Prob. 1MCCh. 8.3 - Prob. 2MCCh. 8.4 - Prob. 1MCCh. 8.4 - Prob. 2MC
Ch. 8.5 - What are the three main events of the cell cycle?Ch. 8.5 - Prob. 2MCCh. 8.5 - Prob. 3MCCh. 8.5 - What happens during each stage of mitosis?Ch. 8.5 - Prob. 5MCCh. 8.6 - Prob. 1MCCh. 8.6 - Prob. 2MCCh. 8.6 - Prob. 3MCCh. 8 - A DNA is placed in a test tube containing...Ch. 8 - A chromosome is made of a. DNA. b. chromatin. c....Ch. 8 - Which of the following explains why binary fission...Ch. 8 - If you were to look at a sample of actively...Ch. 8 - Which stage of the cell cycle occurs immediately...Ch. 8 - What would happen to an animal cell if interphase...Ch. 8 - Why are cell cycle control checkpoints so...Ch. 8 - Prob. 1WIOCh. 8 - Prob. 2WIOCh. 8 - Prob. 3WIOCh. 8 - Sketch and describe the evenst that occur when a...Ch. 8 - List the ways that binary fission is similar to...Ch. 8 - Prob. 6WIOCh. 8 - Prob. 7WIOCh. 8 - Label the arrows connecting the chromosome images...Ch. 8 - Prob. 9WIOCh. 8 - Prob. 10WIOCh. 8 - Prob. 11WIOCh. 8 - Prob. 12WIOCh. 8 - Prob. 1SLCh. 8 - Add DNA polymerase, nucleotides, and complementary...Ch. 8 - Add cell growth and tissue repair to the concept...Ch. 8 - Review the Survey the Landscape figure in the...
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- In which stage of karyokinesis of mitosis spliting of centromere and movement of daughter chromosomes towards opposite poles occurs.arrow_forwardWhy interphase is called prepering phase?arrow_forwardDraw and label G1 and G2 stages of interphase and each stage of mitosis (in order) for a cell that has two large and two small chromosomes, 2n=4. For unreplicated chromosome draw a line ( / ) and for replicated chromosome draw an X. Since we are focusing on the DNA, you can skip drawing the nuclear membrane or spindle fibers. For simplicity, do not indicate that the chromosomes are decondensed chromatin during interphase. Mark and label a place on one of the large chromosomes with the dominant allele of the “A” gene and put the recessive allele “a” on the other homolog. Mark and label a place on one of the small chromosomes with allele “B” and put the recessive allele “b” on the other homolog.arrow_forward
- In which stage of karyokinesis of mitosis uncoiling and elongation of chromosomes occurs.arrow_forwardDuring which of the following stages of interphase does the chromosomes consist of two chromatids joined at the centromere? Select one: G1 and G2 S and G2 G1 G1, G2 and Sarrow_forwardExplain Metaphase Chromosome Structure.arrow_forward
- Re-write the following statement to make it true: "Mitotic CDK is absent when the cell is in interphase and is present only during mitosis."arrow_forwardDescriptions of Some Structures Involved in Cell Division Arrangement of stained chromosomes into homologous pairs from longest to shortest Non-condensed DNA A specialized region on chromosomes where sister chromatids are joined together A length of DNA and its associated proteins Description Number Chromosome Answer Chromatin Answer Karyotype Answer Centromere Answerarrow_forwardAccording to the picture above, the cell shown is going through [Select] and is in the [Select ] stage of cell division.arrow_forward
- Determine whether the following figures portray either Mitosis or Meiosis and identify its specific stage of cell division. (e.g. Mitosis- Prophase)arrow_forwardDescriptions of Some Structures Involved in Cell Division Arrangement of stained chromosomes into homologous pairs from longest to shortest Strands of DNA tightly coiled around histones A specialized region on chromosomes where sister chromatids are joined together Condensed DNA Description Number Chromosome Answer Chromatin Answer Karyotype Answer Centromere Answerarrow_forwardA cat has 38 total chromosomes (19 pairs). If one cell undergoes either mitosis or meiosis, identify the number of chromosomes and chromatids present in every phase of cell cycle. Also, indicate the total number of cells after each type of cell division.arrow_forward
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