BIO 1090 midterm study notes

MODEL 1: M-phase checkpoint G2 checkpoint 1. Consider each of the cells described below and predict at which stage of the cell cycle (G1, S, G2, M, or GO) they are currently in Mitosis A newly generated daughter cell G1 A cell that is actively using DNA polymerase A cell with fully condensed chromosomes A mature, functioning neuron (Hint: It will never divide again) G, checkpoint A cell with uncondensed, replicated chromosomes DNA Synthesis

hello I'm asking for question 1B I already answered 1A & 1C

Match the following terms with their definition. Note that some of the terms will not be used. 1. S phase 2. Oncogene 3. G0 phase 4. Cyclin 5. Metaphase checkpoint 6. G2 phase 7. G1 checkpoint 8. Cyclin-dependent kinase 9. Mitosis ______The stage a cell is in if it is not going to divide ______The part of the cell cycle during which newly replicated DNA is checked for mistakes ______The part of the cell cycle during which DNA replication occurs ______An enzyme that adds phosphate groups to other proteins only when it is bound to another protein ______A protein that is present at high levels only during certain times of the cell cycle _____Point at which the cell dies if all the chromosomes are not correctly attached to the mitotic spindle

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Unit 5 Test Part 2 E Unit 5 Test Part 2 m/forms/d/e/1FAlpQLSel6CRM61QcDBCsgyf50p_qypzPCVMyrZ9wsAWoSdwbXipm_w/viewscore?viewscore=A Which statement does not describe cell cycle checkpoints? Normal checkpoints assess damage to DNA. B Faulty checkpoints may lead to abnormal cell growth. C Cell checkpoints can fail in mitosis and meiosis. D Defective checkpoints result in the death of the cell. A 1 Human bone, muscle, and nerve cells all contain the same number of chromosomes with th same complement of genes. What enables these cells to perform specialized activities?

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The cell cycle is typically thought of as having four stages. Describe the stages of the cell cycle and identify the mechanism(s) involved in progressing or not progressing through the stages with reference to proteins and signalling processes involved. Please keep brief - 10 sentences/dot points max.

B. Sequence the following events based on when they happen in the cell, starting from the interphase. Write A for the earliest event a nd UNDERSTAND for the latest. 1. G2 phase 2. G1 phase 3. Metaphase 4. Anaphase 5. Cytokinesis 6. Telophase 7. Metaphase checkpoint 8. G1 checkpoint 9. G2 checkpoint 10. Prophase

-90 00 00 Macmillan Learning Label each phase of the cell cycle with the appropriate name or description. Answer Bank protein synthesis and preparation for DNA replication protein synthesis and preparation for mitosis DNA replication Go phase M phase

Choose all of the TRUE statements. Hint: 4 statements are true.      Cytokinesis occurs the same way in both plant and animal cells.      Sister chromatids are genetically identical.      The term chromosome can be used to describe both chromosomes composed of one and two chromatids.      Mitosis results in daughter cells that are genetically identical to the parent cell.     All eukaryotic somatic cells are diploid.     Cyclin dependent kinases are present but not active in cell cycle regulation without the presence of cyclin proteins.     Chromosomes are always visible in the cell.

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Procedure: On the next 4 slides, there are pictures of different locations in an onion root tip. On each slide: 1. You will need to count the number of cells in interphase as well as the number undergoing mitosis. 2. Record the number of each cell type in the data chart. 3. Complete the table on each slide.

topic: cheek cells 2. why is it possible to easily collect cells by gently scraping the inside of your cheek?

Question 5 Review Concept 12.2 Phases of Cell Cycle. Match the term and its description. Each term can only be used once. Chromosomes are duplicated during this phase. [ Choose ) Mitosis and cytokinesis are parts of this phase called [ Choose ) The life of a cell from formation to its own division is called [ Choose ) > >

What orchestrates cell differentiation? Why is cell differentiation important? What does it lead to?  asap please

Estimate the time spent in each phase (duration) assuming that the cell cycle for a skin cell is 24hrs (1440min). Show your work.

Mitosis results in the Formation of two daughter cells identical with that of the parental cell Formation of one daughter cell identical with that of the parental cell Formation of three daughter cells identical with that of the parental cell 3 A Formation of four daughter cells identical with that of the parental cell 4 MARKED FOR REVIEW

MIosis Method: Observations of onion root tip squash. Scan the microscope under the 10x objective. Look for the region that has large nuclei relative to the size of the cell; among these cells will be found cells displaying stages of mitosis. Switch to the 40X objective to make closer observations. Since prophase and prometaphase are difficult to distinguish, classify all these cells as prophase. Record your observations in the table provided. Examples are shown in the figure below. Interphase Early Prophase Mid Prophase 10 Metaphase Anaphase Telophase Exercises: 1. Find and draw a cell showing each stage of mitosis. Interphase Prophase Metaphase Anaphase Telophase , 2. What is a distinguishing visible feature of each stage of mitosis? Interphase: Prophase: Metaphase: Anaphase: Telophase: Many of the cells of the root meristem are not undergoing mitosis; rather they Based upon the interpretations 3. are in a stage called 21

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ide? 3. Label the phases of the cell cycle & h -j k

Answer each question with a paragraph; 3-5 sentences each.   Explain the difference between a proto-oncogene and a tumor-suppressor gene. Explain the difference between prokaryotic and eukaryotic cell division. Explain the difference between positive regulation of the cell cycle and negative regulation of the cell cycle. Explain the difference between normal p53 and mutated p53. Find two differences and two similarities between binary fission and mitosis.

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for this week's lab, you will be studying images of the onion root and identifying cells in various stages of the cells cycle.  Using the practice image given in the handout, explain how you are albe to tell the stages apart.

Bio-123 Mitosis Post Lab 7. Complete in the following diagrams that show mitosis ina cell (2n 4). One homologous pair of chromosomes has alleles "A" and "a" and the other homologous pair has alleles "B" and "b". Try using COLORED PENCILS (not required) to aid you in following the chromosomes to their final destination. Gt Interphase G2 Interphase cell membrane nuclear membrane Prophase A DNA synthesis a AаBb AAaaBBbb prandapha se ? alfe Jure yau middie of cell when yee theu yau enarts andfaner a. g oppostesidles nedeus relerhs Metaphase Anaphase metaphase plate plantoivison Uevagra, only plant cell's. Nol an ma cells. Telophase chradds Chrandson Sister Chrenahids Interphase following Mitosis B tnaueach

Q/Choose between parentheses 1-the cell cycle included three phases are........ * (interphase,Mitosis,Cytokinesis/ Mitosis, interphase, cytokinesis/ cytokinesis , interphase , Mitosis/ interphase ,prophase, cytokinesis, metaphase) 2-What the name of structure is plays a significant role in the internal organization of the cell by synthesizing selective molecules and processing, directing and sorting them to their appropriate locations. * (Endoplasmic Reticulum/Mitochondria/Golgi bodies/ Rough Endoplasmic Reticulum) 3-cell membrane formed of .................phospholipid * (bilipid layer/one lipid layer/ tri lipid layer/four lipid layer)

A. Interpretation of Graph/Table Use graph key as guide A cell mitosis experiment in which the cells count is determined hourly over a 24 hour period is shown below: Growth curve: What conclusions can you draw about the process of mitosis over a 24-hour period? Lines: Individual Continuous Options Number of Cells.Hour Courtesy: www.inspiration.com 1. What conclusions can you draw about the process of cell mitosis over a 24-hour period;

d part, ask mark the 2dana check points in a cell cycle. help answer.

Which event occurs in S-phase? Question 4 options:   Mitotic spindle is created.   Normal growth and cell function   Energy stores are replenished   Karyokinesis   None of the above

Q6\ How can cell prevent any error can cause cancer or abnormal cell?

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Give The Correct  matching and lightly Explain  all point of question.

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