In prokaryotes‚ it’s easier to make DNA replication because of the lack of a nucleus‚ but to do DNA replication in a eukaryotic cell is more difficult. DNA of an eukaryotic cell is in chromatin form to fit into the small nucleus for the replication to occur‚ first the DNA should open. This is because it is harder for eukaryotes to carry out DNA synthesis. Replication of DNA in a prokaryote is different from a eukaryote. In a prokaryote they have a single origin where the replication process starts
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Unit 3 Growth & Heredity Exam Review & Study Guide WHAT SHOULD I KNOW ABOUT… DNA STRUCTURE‚ DNA REPLICATION‚ Tx‚ Tl‚ MUTATIONS‚ CELL CYCLE‚ MITOSIS‚ MEIOSIS‚ MENDELIAN GENETICS Review/Use the following: Vocab lists‚ ISN Pages‚ Practice Questions‚ Lectures‚ Book Chapters 12‚ 9‚ 10 DNA STRUCTURE 1. What role did Rosalyn Franklin play in our understanding of DNA’s structure? She discovered the double-helix position of the DNA. 2. What role did James Watson & Francis Crick play in our understanding
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Midterm Study Guide Answers 1. A hypothesis is an explanation of observations. “If the floor is wet‚ I will slip.” 2. A controlled experiment is when only one variable is changed. 3. If the plant you are experimenting with has a disease that is an unavoidable experimental error. 4. An enzyme speeds up reactions and lowers the energy it takes to produce something‚ a lock and key. 5. Autotrophs make their own food by producing sugars from sunlight and various chemicals. 6
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Mendel‚ Genes‚ and Inheritance Chapter 12 Why It Matters Red blood cells in sickle-cell disease One amino acid in the wrong position causes the disease 12.1 The Beginnings of Genetics: Mendel’s Garden Peas Mendel chose true-breeding garden peas for his experiments Mendel first worked with single-character crosses Mendel’s single-character crosses led him to propose the principle of segregation Mendel could predict both classes and proportions of offspring from his hypotheses
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1. What organic molecules make up the largest part of a cell membrane? a. Lipids 2. Which of the following is presumed to have been engulfed by an ancestral eukaryote and became a eukaryote organ? b. Chloroplast 3. Which of the following is correct about mitochondria? c. Most cells plants contain a mitochondria 4. Horse eating hay is an example of? d. a consumer eating a producer 5. Structure of ATP is MOST similar to the structure of? e. RNA molecules
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Internal verifier: IV sample Y/N Date Due Week Date Received Extension Agreed Y/N Resubmission Date Learning Outcome 1. Understand how genetic information is passed from parents to offspring. Assessment Criteria 1.1 Recall the main stages of meiosis and understand the biological significance of the process. ( question 5) 1.2 Understand Monohybrid and Dihybrid Mendelian Inheritance.(question 1‚4) 1.3 Understand co-dominance and sex linkage.(question 2‚3) 1.4 Apply biological principles and concepts
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-dz assignment Diagram Micrograph Structure (noun) Function (verb) Relationship between S/F Nucleus - Nucleus composed of chromatin‚ nucleoplasm‚ a nucleolus‚ and a nuclear envelope - Has large pores (nuclear pores/nuclear envelope) - Nuclear envelope has a double membrane - Diameter of 5 micrometers - spherical shape - controls all cell activity by directing which enzymes are made for specific functions - stores the genetic material of the cell (DNA) - directs
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org/dictionary/Diploid>. 3. "Function and stages of mitosis." Virtual Classroom Biologie. Web. 29 Sept. 2011. <http://www.vcbio.science.ru.nl/en/virtuallessons/mitostage/>. 4. "Meiosis." Suny.edu. Suny College. Web. 28 Sept. 2011. <http://faculty.clintoncc.suny.edu/faculty/michael.gregory/files/bio%20101/bio%20101%20lectures/meiosis/meiosis.htm>. 5. "Re: How Do Plant and Animal Mitosis Differ?" MadSciNet: The 24-hour Exploding Laboratory. Web. 29 Sept. 2011. <http://www.madsci.org/posts/archives/2002-01/1012526835
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B) Centriole C) Cell membrane D) None of these 7. In meiosis crossing over takes place during A) Leptotene B) Zygotene C) Pachytene D) none of these 8. The first division of meiosis is A) Equational B) Reductional C) Both (A) and (B) D) None of these 9. Which plant material is best suited for the study of meiosis A) Root tip B) Anther C) Shoot apex D) None of these
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Important Questions of this chapter: **Definition Cell cycle 2. Homologous Chromosome 3. Sister Chromatid 4. Synapsis **Short Questions 1.Describe the chief events of mitosis and show how these differ from meiosis. (V.V.I.) 2. What ‘checkpoints’ occur in cell cycle? What is the role of each? **Long Questions 1.Describe the phases of the cell cycle and the events that characterize each phase. Answer of short Definition is given below 1. Cell Cycle: The cell cycle is an orderly
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