mt1key - 1 BIS 101 003 MIDTERM I READ THE FOLLOWING...

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1 BIS 101 - 003 MIDTERM I April 21, 2006 READ THE FOLLOWING INSTRUCTIONS: Write your name legibly on each page of this exam. All work must be done in ink . Show all your work. This exam is worth 100 points. You have 50 min. to complete the exam. Authorization for public distribution of graded examination I, ____________________________________, ID _________________________ authorize the University to publicly distribute my grated examination for BIS 101-003. Date_______________________________ Signed: _____________________________ Good Luck!
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2 Name:______________________________ P a g e : 3 ________ 4 ________ 5 ________ 6 ________ 7 ________ 8 ________ Total ________
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3 Name:______________________________ ( 1 ) Consider the following pedigree (a) Predict the mode of inheritance. (4 points) Autosomal recessive (b) Predict the most probable genotype for as many individuals as you can. Assume that the alleles A and a control the expression of the trait. Write the predicted genotypes into the circles and squares in the pedigree. Indicate the by a dash genes you cannot determine. (4 points) Aa Aa Aa Aa Aa Aa Aa Aa A- Aa Aa Aa Aa aa aa aa aa Aa aa aa AA A- A- A- A- ( 2 ) Erminette fowls have mostly light-colored feathers with an occasional black one, giving a flecked appearance. A cross of two erminettes produced 48 progeny: 14 black, 22 erminettes, and 12 pure whites. (a) What genetic basis of the erminette pattern is suggested? (6 points) Erminetter is an incompletely dominant heterozygote 1 EE = black : 2 Ee = erminette : 1 ee = white
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4 Name:______________________________ ( 1 ) When true breeding brown dogs are mated with true breeding white dogs all the F
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This note was uploaded on 10/26/2008 for the course BIS 101 taught by Professor Simonchan during the Spring '08 term at UC Davis.

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mt1key - 1 BIS 101 003 MIDTERM I READ THE FOLLOWING...

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