BIO SCI 93 Study Guide - Final Guide: Dna Methyltransferase, Y Chromosome, Synapsis
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BIO SCI 93 Full Course Notes
Verified Note
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Bio 93 fall 2012 lecture a final exam. 35 graded ques9ons worth 2 points each (70 points total) Instructions: these are all multiple choice and there is only one best answer. Mark it on your scantron: you have version b. Dnmt is involved in: degrada>on of mrna, epigene>c remodeling, rna processing, control of dna replica>on. What is the likely genotype of the sex chromosomes in this cat: xy, x, y, xx, xxy. Orange and black coat color are x- linked genes. The tortoiseshell paxern is caused by inac>va>on of x chromosome in patches. Males have one x chromosome and can be black or orange but not both. A black and orange male cat must have two x chromosomes in addi>on to a y chromosome. This is equivalent to klinefelter syndrome in humans: a cell line is mutated so that it contains non- func>onal kinetochores. Answer: chromosomes would not line up at the metaphase plate.
