Mitosis & Meiosis Free Response www.njctl.org Slide 3 / 7 1 - PDF document

Slide 1 / 7 New Jersey Center for Teaching and Learning Progressive Science Initiative This material is made freely available at www.njctl.org and is intended for the non-commercial use of students and teachers. These materials may not be used for any commercial purpose without the written permission of the owners. NJCTL maintains its website for the convenience of teachers who wish to make their work available to other teachers, participate in a virtual professional learning community, and/or provide access to course materials to parents, students and others. Click to go to website: www.njctl.org Slide 2 / 7 Mitosis & Meiosis Free Response www.njctl.org Slide 3 / 7 1 Mitosis and Meiosis are two distinct types of eukaryotic cellular reproduction. Compare and contrast them by responding to the prompts below: When a cell undergoes mitosis, how many cells are produced and how does their chromosome number A compare to the parent cell? When a cell undergoes meiosis, how many cells are B produced and how does their chromosome number compare to the parent cell? C List three reasons why a eukaryotic cell might undergo mitosis. D Why would a eukaryotic organism produce cells via meiosis?

Slide 4 / 7 2 Compare and contrast cancer cells and “normal” cells by responding to the prompts below: A Describe the primary difference between cellular reproduction in cancer cells and in non-cancerous cells. B What do tumors consist of and what are the specific differences between malignant and benign tumors? Slide 5 / 7 3 Compare and contrast the two primary methods of cancer treatment by responding to the prompts below. Radiation therapy is non-systemic but chemotherapy is A systemic. Explain the difference between systemic and non-systemic. Chemotherapy typically targets which structure found in the process of mitosis? How would the destruction of this B structure affect mitosis? C Radiation typically targets which structure found in cells? How would this affect mitosis? Slide 6 / 7 4 Below is an image that represents the chromosomes found within a human cell. Use this image to respond to the prompts below. A Is this the karyotype of a human somatic cell or a human gamete? Explain your response. B Does the karyotype above represent a male or a female? Explain your response. Does this karyotype demonstrate any chromosomal C abnormalities? If so, specify the type of abnormality; if not, why not?

Slide 7 / 7 5 The image below illustrates chromosomes during metaphase 1. The darker Xs represent the chromosomes from the mother, while the lighter Xs represents the chromosomes from the father. Use this illustration to respond to the prompts below. http://www.vce.bioninja.com.au/aos-3-heredity/cell-reproduction/meiosis.html A What is the term for this variation in the way that chromosomes can line up during metaphase 1 of meiosis? B How does this lead to increased genetic variation in offspring?