Part 2: Effects of Environment on Mitosis. Experimental Hypothesis: If we put onion root tips in IAA solution then the rate of Mitosis will increase. Null Hypothesis: There will be no difference Part 1- Post Lab Question If a cell contains a set of duplicated chromosomes‚ does it contain any more genetic information than the cell before the chromosomes were duplicated? No‚ because if it is duplicated‚ it would have the same number of chromosomes unless there was a
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Nuclear envelopes reform‚ chromosomes relax‚ and cytoplasm divides. 6. In what ways are mitosis and meiosis similar? In what ways are they different? A: Mitosis is not for sex cells. Mitosis also uses RNA to replicate the DNA and divide. Meiosis is for sex cells (sperm and egg) and doesn’t use RNA to replicate. They are similar in that they are the two main ways that cells divide to form more cells. Mitosis provides four cells and meiosis provides two cells.
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Kurt Ian Khalid I. Israel 7- Cazz The Stages of Mitosis The process of mitosis is divided into 6 stages. The Interphase‚ Prophase‚ Metaphase‚ Anaphase‚ Telophase‚ and cytokinasis. At Interphase‚ there is only one cell‚ but after cytokinasis there are two identical cells. Before mitosis can take place‚ the cell need to store enough energy to drive the chemical processes during the cell division. During this period of time‚ there is intense cellular activity. The cell grows in
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conditions Aerobic conditions 3 BLG1501/201/S2/2012 Question 10.3: Make labelled drawings to illustrate the different phases of mitosis in an animal cell with two chromosomes. (20) Answer Question 11.6: Tabulate the key differences between mitosis and meiosis. (14) Answer: Mitosis Meiosis DNA replication occurs during DNA replication occurs during interphase before mitosis begins interphase before meiosis 1 begins One division Two divisions Synapsis does not occur Synapsis occurs during prophase
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normal wear and tear or injury to them. All cells grow and die at different rates. The cell cycle can be divided into three periods: interphase‚ the mitotic phase‚ and cytokinesis. During interphase‚ the cell grows‚ accumulating nutrients needed for mitosis‚ preparing it for cell division and duplicating its DNA. During the mitotic phase‚ the cell splits itself into two distinct daughter cells. During the final stage‚ cytokinesis‚ the new cell is completely divided. To ensure the proper division of the
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Value A. carcinogenesis B. mutagenesis C. angiogenesis D. metastasis 100% E. mitosis Score: 1/1 3. Consider a strand of DNA with the sequence GAATTCGGCA. What is the sequence of the complementary strand? Student Response Value A. AGGCCTAATG B. TCCGGATTAC C. CTTAAGCCGT 100% D. ACGGCTTAAG E. GAATTCGGCA Score: 1/1 4. Which of the following is NOT a part of mitosis? Student Response Value A. metaphase B. anaphase C. prophase D. telophase
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1. Read the press release on the 2001 Nobel Prize. Summarize in a few paragraphs the accomplishments of these scientists‚ and the relevance of their discoveries. (Answer in 500 words or less. Send to instructor) The Nobel Prize in Physiology or Medicine 2001 was awarded jointly to Leland H. Hartwell‚ Tim Hunt and Sir Paul M. Nurse "for their discoveries of key regulators of the cell cycle". They have identified key molecules that regulate the cell cycle in all eukaryotic organisms‚ including
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CHAPTER CHEICAL BASIS OF LIFE OUTLINE The human body is composed of chemicals. Chemistry describes the composition of substances & how chemicals react with each other. STRUCTURE OF MATTER ELEMENTS are composed of atoms‚ which are the smallest unit of element MATTER is composed of elements ATOMIC STRUCTURE • A complete atom is electrically neutral • Atom consists of elements‚ protons‚ & neutrons • Electrons are negative charge & • Neutrons are uncharged( neutral) • Atomic number is equal
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Section 1: Binary fission‚ mitosis‚ & meiosis Reading: Chapter 7 Watch and Learn: Mitosis http://www.youtube.com/watch?v=1cVZBV9tD-A&feature=share&list=UUEik-U3T6u6JA0XiHLbNbOw Meiosis http://www.youtube.com/watch?v=rB_8dTuh73c&feature=share&list=UUEik-U3T6u6JA0XiHLbNbOw Basic Learning objectives After completing the readings and practice exercises‚ students should be able to: Describe the process of binary fission. Describe the features and components of eukaryotic chromosomes and sister
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CHAPTER 12- THE CELL CYCLE I. Concept 12.1- Cell division results in genetically identical daughter cells A. Overview 1) The continuity of life is based on the reproduction of cells or cell division. 2) The cell division process is an integral part of the cell cycle‚ the life of a cell from the time it is first formed from a dividing parent cell until its own division into two cells. B. Cellular Organization of the Genetic Material 1) A cell’s endowment of DNA‚ its genetic
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