11.05.09_DiscQuestions - Intro Bio 151/153 Discussion...

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Intro Bio 151/153 Discussion Questions; week of 11/9-11/13 Name: Josh Litwicki INSTRUCTIONS: All the questions we will work through in discussion this week follow. Discussion section will be more productive if you attempt these questions before discussion the week of 11/9. Please print these out and bring them with you to discussion. You will have an opportunity to work through these in small groups and ask your TA questions. 1. From a single sex cell going through meiosis, how many cells are produced? What is their ploidy? 4 2. What are the differences between a gene, an allele, and a locus? Gene : a linear sequence of nucleotides along a segment of DNA that provides the coded instructions for synthesis of RNA, which, when translated into protein, leads to the expression of hereditary character. Allele: The sequence of nucleotides on a DNA molecule that constitutes the form of a gene at a specific spot or a chromosome. Locus : The position that a given gene occupies on a chromosome. 3. List at least 3 similarities and 3 differences between meiosis and mitosis. Similarities : DNA replication occurs during interphase. Both are forms of a type of cell division. Both have prophase, metaphase, anaphase, and Telophase.
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