Problem Set 7 Answer

Problem Set 7 Answer - Genetics 380 : Spring 2011 Problem...

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Genetics 380 : Spring 2011 Problem Set 7 Answers Chapter 8 1. (a) After single crossover between genes 6 & 7- Parental strands- 1 2 3 4 5 6 7 8 9 10 o . 1 2 3 9 8 7 6 5 4 10 o . Recombined strands- 1 2 3 4 5 6 7 8 9 3 2 1 (Acentric) o 10 4 5 6 7 8 9 10 o __ (Dicentric) (b) second one between genes 7 and 8)- Parental strands- 1 2 3 4 5 6 7 8 9 10 o . 1 2 3 9 8 7 6 5 4 10 o . Recombined strands- 1 2 3 4 5 6 7 8 9 10 o . 1 2 3 9 8 7 6 5 4 10 o . (c) After a 4-strand double crossover second one between genes 7 and 8)- No Parental strands left 4 Recombined strands- 1 2 3 4 5 6 7 8 9 3 2 1 (Acentric) 1 2 3 4 5 6 7 8 9 3 2 1 (Acentric) o 10 4 5 6 7 8 9 10 o __ (Dicentric) o 10 4 5 6 7 8 9 10 o __ (Dicentric) 2. Pairing of translocation heterozygous chromosomes in meiosis I metaphase- a b c d e f g O s r q p o n m s r q p o n m a b c d e f g h j i j i h t u v t u v O O O
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3. Cross:- AAa Bb X Aa Bb The trisomic parent 1 (AAa Bb) will produce
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This note was uploaded on 09/29/2011 for the course GENETICS 380 taught by Professor Glodowski during the Spring '08 term at Rutgers.

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Problem Set 7 Answer - Genetics 380 : Spring 2011 Problem...

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