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Name: Date: Class/Period: Teacher: Mitosis Unit Guide Part 1: Steps of Mitosis Write the name of the phase of the cell cycle next to each event described below. _____________________ centromeres divide _____________________ nuclear membrane forms around each mass of chromosomes _____________________ a copy of each chromosome is made _____________________ the nuclear membrane disappears ____________________ double stranded chromosomes line up in the center of the cell. _____________________ cell cleaves (splits) into two new daughter cells Part Two: Identify the Phase _______________ ______________ ______________ _______________ OVER--- Part 3: Reviewing the Main Ideas and Vocabulary Fill in the blank: Some will be used more than once. A. Prophase D. Metaphase G. Chromatid B. Interphase C. Telophase E. Anaphase F. Centromere H. Cytokinesis J. Spindle fiber K. Cell Plate I. Mitosis ________________1. What phase are daughter cells in as a result of mitosis? ________________2. During what phase of mitosis do centromeres divide and the chromosomes move toward their respective poles? ________________3. What is the phase where chromatin condenses to form chromosomes? ________________4. What is the name of the structure that connects the two chromatids? ________________5. In a chromosome pair connected by a centromere, what is each individual chromosome called? ________________6. What are the two parts of cell division? ________________ ________________7. What structure forms in prophase along which the chromosomes move? ________________8. Which phase of mitosis is the last phase that chromatids are together? ________________9. Which phase of the cell cycle is characterized by a non-dividing cell? ________________10. What structure is produced when protein fibers radiate from centrioles? ________________11. What forms across the center of a cell near the end of telophase? ________________12. The period of cell growth and development between mitotic divisions? ________________13. What is the phase where cytokinesis occurs? OVER--- Name: Date: Class/Period: Teacher: DNA Structure Unit Guide Part 1 : Matching Sexual Chromosome DNA Zygote Genes Haploid Mitosis Diploid Chromosome Asexual Sperm Eggs Fertilization _____________________ Many cells in your body grow and divide every day by what process? ____________________ What structure in the cell’s nucleus holds the hereditary information? ____________________ Term for joining of the egg and sperm ____________________ Sections of DNA that contain instructions for producing specific proteins ____________________ What are male sex cells called? ____________________ The type of reproduction that involves one parent ___________________ An organism grows and functions by following the information in this code. ___________________ The term for female sex cells. ___________________ Cells that contain 46 chromosomes are referred to as this ___________________ Cells that contain 23 chromosomes are referred to as this ___________________ Type of reproduction that involves two parents ___________________The nucleic acid found in the Nucleus. OVER--- Part Two: DNA Molecule Identification Moving from left to right, write the letters (A, T, C, G) in the empty circles of the bases that will pair up with the bases on the top strand to this DNA molecule. The first three pairs have been created for you. Examine the following three letter sequences: UUA CCG UAA GGG These represent ____________. They code for specific _______________. True or false? Every human being has the exactly the same codons in the exact same order. Part Three: Main Idea/ Vocabulary Review 1. 2. 3. 4. 5. 6. 7. 8. How many chromosomes does a human body cell have? _________ Sex cell? _______ Each chromosome consists of two identical parts called ____________________________. Each pair of chromosomes is attached at the ___________________________. During which phase of the cell cycle is DNA replicated? _____________________________. Where is DNA found? ________________________________ A cell without a nucleus is a(n) ____________________________ cell. A cell with a nucleus is a(n) ______________________________ cell. If two chromosomes contain the same genetic information they are called _________________________________. 9. If a fruit fly has 38 chromosomes in its body cells, how many would be in its sex cells? _________________ 10. A male tiger has 40 chromosomes in its sperm cells. How many chromosomes would be in a baby tiger when it is born? _____________. OVER---
