Meiosis Student Notes Outline by jamesdauray

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									[UNIT 9 – MEIOSIS AND CHROMOSOME ASSORTMENT]                     Biology I Notes Outline

   1. Define somatic cells –


   2. Define gametes –


   3. Each human somatic cell has __________ of chromosomes, __________________ total.

   4. Two paired chromosomes are called ______________________________.

   5. What does each homologous chromosome carry?



   6. Label the diagram below.




   7. What is this called?




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[UNIT 9 – MEIOSIS AND CHROMOSOME ASSORTMENT]                         Biology I Notes Outline


   8. The sex chromosomes are called __________ and __________.

   9. Human females have: _________________________________.

   10. Human males have: __________________________________.

   11. What are autosomes?


   12. Define gene –


         a. A gene is made of a segment of ______________.

         b. Each gene is located on a ___________________________.

         c. Everyone has _______ copies of each gene. How?

   13. What does diploid mean?

         a. The shorthand for diploid is:

         b. All __________________ cells are diploid.

   14. What does haploid mean?

         a. The shorthand for haploid is:

         b. All __________ are haploid and have _______________ total chromosomes.

   15. Gametes are ____________ cells, containing only _________________________________.

         a. How many total chromosomes is this?

         b. This includes _____________________ and a ______________________________.

         c. In a female egg, the sex chromosome is always ____________.

         d. In a male sperm, the sex chromosome may be __________________.

   16. The ovaries and testes produce eggs and sperm through __________________.

         a. Gametes are the _____________________________________________________.




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[UNIT 9 – MEIOSIS AND CHROMOSOME ASSORTMENT]                             Biology I Notes Outline


   17. Define meiosis:


          a. The resulting daughter cells are __________________.

   18. What happens during fertilization?


Stages of Meiosis

   19. Describe the cell at the end of interphase:


          a. Is the cell diploid or haploid at this point?

                  i. The nucleus contains _________________ of chromosomes.

                  ii. Each chromosome is made of ________________________________.

   20. Fill in this table for the different stages of meiosis:

       Stage of Mitosis                       What Happens?           What Does it Look Like?




         Prophase I




     Crossing-over
   (part of prophase I)




        Metaphase I
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[UNIT 9 – MEIOSIS AND CHROMOSOME ASSORTMENT]                Biology I Notes Outline




       Anaphase I




    Telophase I and
      Cytokinesis




       Prophase II




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[UNIT 9 – MEIOSIS AND CHROMOSOME ASSORTMENT]                       Biology I Notes Outline




      Metaphase II




       Anaphase II




    Telophase II and
       Cytokinesis




   21. What does mitosis produce?


   22. What does meiosis produce?

   23. Meiosis allows _______________________ of chromosomes.

         a. This produces cells that are ________________________________________

            ______________________________________________________________.




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