Part 1. "General pathomorphology" - Semantic module No.1 "Introduction. Alteration"Student"1CHROMOSOME DAMAGEdelay cell in prophaseviolation of coiling and uncoiling ofchromosomesfragmentation of chromosomesthe formation of bridges betweenchromosomes at anaphaseearly separation of sister chromatidsdamage to the kinetochoreCHROMOSOMEABERRATIONS- changes in chromosomestructure caused by rupture,with subsequentredistribution, loss, or adoubling of genetic materialTranslocationDeletionTab. 18. STRUCTURAL CHANGES IN THE CHROMOSOMESChangesInversionThinningHeterochromiaDuplicationRobertsonantransformationMonosomy●ThreesomyTYPES OF MITOSIS PATHOLOGYMITOTIC APPARATUS DAMAGEmultipolar mitosesmonocentric mitosis"1delay of mitosis at metaphasedispersal of chromosomes in metaphasethree group metaphasehollow metaphaseasymmetric mitosisK-mitosisTopic 1.1. Introduction to the pathomorphology course. Cellular and ultrastructural pathology.groupfaculty Date20 year.Definition"11 untimely2 delay3 absentpo 19CYTOKINESIS INFRINGEMENTExamples20

Translocation is a term used in biology to describe the movement of a biological molecule or…

Tab. 18. STRUCTURAL CHANGES IN THE CHROMOSOMES Changes CHROMOSOME ABERRATIONS - changes in chromosome structure caused by rupture, with subsequent redistribution, loss, or a doubling of genetic material Translocation Deletion Inversion Thinning Heterochromia Duplication Robertsonan transformation Monosomy Threesomy Definition Examples 20

Tab. 18. STRUCTURAL CHANGES IN THE CHROMOSOMES Changes CHROMOSOME ABERRATIONS - changes in chromosome structure caused by rupture, with subsequent redistribution, loss, or a doubling of genetic material Translocation Deletion Inversion Thinning Heterochromia Duplication Robertsonan transformation Monosomy Threesomy Definition Examples 20

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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Select true or false for each of the following statements regarding anaphase II. Sister chromatids remain attached at the centromeres. Answertruefalse Homologous chromosomes remain attached at the centromeres. Answertruefalse Sister chromatids are pulled apart. Answertruefalse Homologous chromosomes are pulled apart. Answertruefalse Chiasmata are broken. Answertruefalse Non-kinetochore microtubules lengthen the cell. Answertruefalse
Ith the description: Homologous chromosomes line up in pairs along the metaphase plate. 1. Telophase II followed by cytokinesis Crossing over occurs between homologous chromosomes. 2. Metaphase I 3. Anaphase I| Four haploid, genetically unique cells are formed. 4. Prophase I Homologous chromosomes are separated. 5. Anaphase I Sister chromatids are separated. >
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.
The mitotic spindles arise from which cell structure? centromere centroscme kinetochore cleavage furrow
Figure 10.6 Which of the following is the correct order of events in mitosis? Sister chromatids line up at the metaphase plate. The kinetochore becomes attached to the mitotic spindle. The nucleus reforms and the cell divides. Cohesin proteins break down and the sister chromatids separate. The kinetochore becomes attached to the mitotic spindle. Cohesin proteins break down and the sister chromatids separate. Sister chromatids line up at the metaphase plate. The nucleus reforms and the cell divides. The kinetochore becomes attached to the cohesin proteins. Sister chromatids line up at the metaphase plate. The kinetochore breaks down and the sister chromatids separate. The nucleus reforms and the cell divides. The kinetochore becomes attached to the mitotic spindle. Sister chromatids line up at the metaphase plate. Cohesin proteins break down and the sister chromatids separate. The nucleus reforms and the cell divides.
TELUPHASE 4 Meiosis is the division of a germ cell involving two fissions of the nucleus and giving rise to four gametes or sex cells, each possess ing half the number of clromosomes of the original cell. Its phases begirning interphase are PROPHASE 1, METAPHASE 1, ANAPHASE , TELOPHASE 1, PROPHASE 2, METAPHASE 2 ANAPHASE 2, and TELOPHASE 2. Easy Level Instructions. Fill in the blanks with needed word/s to complete the concept of each sentence/paragraph. Choose your answer from the word pool below. Write your ans wer in the space provided for. Spindle Checkpoint Cytokinesis G1 Mitosis S Phase Checkpoint G2 Check point G2 M Checkpoint Apoptosis I. A (1) Chck point is a stage in the eukaryotic cell cycle at which the cell examines intemal and external cues and "decides" whether or not to move forward with division. II. There are number of checkpoints, but the three most important ones are: The (2) at the Gl/S transition, the (3): at the G2/M transition and the (4) at the transition from…
Select true or false for each of the following statements regarding anaphase I. Sister chromatids remain attached at the centromeres. Answertruefalse Homologous chromosomes remain attached at the centromeres. Answertruefalse Sister chromatids are pulled apart. Answertruefalse Homologous chromosomes are pulled apart. Answertruefalse Chiasmata are broken. Answertruefalse
Various stages of cell division Growing spindle fibres Disappearing nuckar membrane Centrio les migrate toward poles Replicated chromosome
x * X Given the cell shown here, answer the following three questions. 1. Describe the ploidy and total chromosome count of this cell without using any words. 2. What checkpoint in the cell cycle will allow this cell to move to the next phase? 3. What will be the ploidy of the two resulting daughter cells? 4. If non-disjunction occurred in one of the chromosomes shown here, what would be the ploidy of each of the resulting daughter cells?
mitosis nuclei resides in the nucleus karyotype autosomes haploid In dividing parent cell; in the parent cell. Male and female gametes at fertilization forms a homologs Microscopic observations showed that during fertilization, the unite, providing evidence that genetic material resides in the cell membrane Brightly staining, threadlike bodies within the nucleus were termed of these bodies could be traced through cell division. chromosomes diploid A image can reveal abnormalities in meiosis of eggs and sperm ; the movements gametes contain a single set of chromosomes. The fusion of zygote. the number of chromosomes in daughter cells remains the same as in the the number of chromosomes in daughter cells is half that of Two chromosomes that match in size, shape, and banding when isolated and stained are is an image of an individual's chromosomes arranged in homologous pairs. This chromosome number and structure nondisjunction
12:36 This account does not allow editing on your (X) device. For an account with full acces...more Sign in Biology Review L.16.17 – Mitosis/ Meiosis Compare and contrast mitosis and melosis and relate to the processes of sexual and asexual reproduction and their consequences for genetic variation. 1. Differentiate the processes of mitosis and meiosis. 2. Describe the role of mitosis in asexual reproduction, and/or the role of meiosis in sexual reproduction, including how these processes may contribute to or limit genetic variation. 3. Describe specific events occurring in each of the stages of the cell cycle and/or phases of mitosis. 4. Explain how mitosis forms new cells and its role in maintaining chromosome number during asexual reproduction. 5. Explain how cancer (uncontrolled cell growth) may result from mutations that affect the proteins that regulate the cell cycle. 6. Describe the process of meiosis, including independent assortment and crossing over 7. Explain how meiosis…
How does the attachment of kinetochore microtubules to thekinetochore differ in metaphase of meiosis I compared tometaphase of mitosis? Discuss what you think would happenif a sister chromatid was not attached to a kinetochoremicrotubule