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Metaphase

AP biology test bank chp 12

Subject: 
Biology
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Cell biology
Biology
Cell cycle
Mitosis
Cyclin
Kinetochore
Metaphase
Cell division
Spindle apparatus
Prometaphase
Cell growth
Anaphase

Campbell's Biology, 9e (Reece et al.) Chapter 12 The Cell Cycle In this chapter, 24 questions are new, and 12 have been altered to incorporate new material from the textbook. As in the other chapters, any questions that depend on figures or introductory scenarios have been placed at the end of the chapter rather than in concept sequence. Multiple-Choice Questions 1) The centromere is a region in which A) chromatids remain attached to one another until anaphase. B) metaphase chromosomes become aligned at the metaphase plate. C) chromosomes are grouped during telophase. D) the nucleus is located prior to mitosis. E) new spindle microtubules form at either end. Answer: A Topic: Concept 12.1 Skill: Knowledge/Comprehension

Ch 12 Study Guide

Subject: 
Biology
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Cell biology
Biology
Cell cycle
Mitosis
Kinetochore
Cell division
Spindle apparatus
Meiosis
Prometaphase
Metaphase
Cytokinesis
Cleavage furrow

Copyright ? 2011 Pearson Education, Inc. - 1 - Name_______________________Period___________ Chapter 12: The Cell Cycle Overview: 1. What are the three key roles of cell division? State each role, and give an example. Key Role Example Reproduction An amoeba, a single-celled eukaryote, divides into two cells. Each new cell will be an individual organism. Growth and development A sand dollar embryo forms two cells shortly after the fertilized egg is divided. Tissue removal Dividing bone marrow cells will give rise to new blood cells. 2. What is meant by the cell cycle? The cell cycle is the life of a cell from the time it is first formed from a dividing parent cell until its own division into two daughter cells.

chromosomes and human heredity

Subject: 
Biology
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Biology
Genetics
Cytogenetics
Chromosomes
Molecular genetics
Cell cycle
Meiosis
Nondisjunction
Karyotype
Telomere
Metaphase
Homologous chromosome
Technology

2/21/13 2:31 PM Scientists don?t just study genes, they also study whole chromosomes by using images of chromosomes stained during metaphase Karyotype- pairs of homologous chromosomes arranged in decreasing size to produce a micrograph Telomeres Telomeres- chromosome s end in protective caps, these caps consist of DNA associated with protiens The telomere also might be involved with aging and caner Nondisjunction Cell division during which sister chromatids fail to separate properly, this can take place during meiosis I or meiosis II One form two kinds of gametes result One has an extra one and one is missing one Organisms with an extra chromosome can survive but those lacking one usually do not Monosomy- lacking a chromosome in humans don?t usually survive
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