BIS 101 Final

BIS 101 Final - NAME: ID# Last, First BIS101-2 Winter 2007...

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NAME: ID# Last, First BIS101-2 Winter 2007 FINAL EXAM SHOW ALL WORK TO GET FULL CREDIT . I,________________________ , ID#(6 last digits)_________________________ authorize posting of my grade in Briggs (1st floor) by the 6 last digits of my ID# Note: Final exams will not be returned and no re-grading petitions will be honored . Only claims for clerical errors (errors adding points or transferring grades to roster) will be accepted. The exams will be only available for inspection by appointment until April 15th at 116 Asmundson. 1
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FINAL W’07 QUESTION VALUE SCORE 1 20 2 10 3 24 4 20 5 13 6 10 7 22 8 24 9 10 10 9 11 20 12 18 TOTAL 200 2
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1) (20) Loci A and B are linked 10 map units apart, but C is on another chromosome. An individual of genotype AABBCC is crossed to another one of genotype aabbcc. Then the F1 is testcrossed. What percentage of the testcross progeny will have genotype AaBbCc ? Show the crosses diagramming the chromosomes with the correct allelic arrangement for each parent and F1. P: A B/A B ; C/C x a b/a b, c/c F1 A B/a b, C/c x a b/a b; c/c Frequency of A B parental class from F1 = 45% probability of A B carrying along C allele which assorts independently on a different chromosome = 0.5 Frequency of progeny genotype A B/ a b ; C/c = 45.% (0.5)= 22.5% 2) (10)Tomatoes have a diploid (2n) number of 24 chromosomes. Identify the number of chromosomes that would be expected in a tomato plant that is: 1. 23 a monosomic. (2) 2. 25 a trisomic. (2) 3. 24 a heterozygote for a reciprocal translocation. (2) 4. 22 a nullisomic. (2) 5. 60 a pentaploid. (2) 3) (24 pts) Use the genetic code on the front page of the exam to complete the following table. Assume that reading of the template strand (second row) is from left to right and that the columns represent transcriptional and translational alignments. Write the polarities of the DNA strands, tRNA and mRNA. C G T T G C G C A T G A DNA double helix 5’ 3’ G C A A C G C G T A C T 3’5’ template C G U U G C G C A U G A mRNA transcript 5’ 3’ G C A A C G C G U A C U tRNA anticodon 3’ 5’ Amino acids or factors Arg Cys Ala St o p incorporated 3
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4) (20 pts) The order of entry of genes from four different Hfr donors is given below.
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This note was uploaded on 07/13/2008 for the course BIS 101 taught by Professor Simonchan during the Fall '08 term at UC Davis.

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BIS 101 Final - NAME: ID# Last, First BIS101-2 Winter 2007...

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