Exam 3 - Write your name on the back of the last page Exam...

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Page 1 of 9 Write your name on the back of the last page Exam 2 – October 8, 2004 ANSI3423 – Animal Genetics MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The mitochondrial genome contains genes that encode A) messenger RNAs. B) transfer RNAs. C) ribosomal RNAs. D) all of the above E) none of the above 2) Which type of chromosomal mutation cannot revert to the wild-type state? A) deletion B) duplication C) translocation D) both A and C E) all of the above 3) The phenotype of a gene carried on mitochondria would be observable in A) none of the progeny B) both male and female progeny C) male progeny only D) female progeny only 4) Consider an X-linked recessive lethal mutation, designated m, in drosophila. Homozygous females ( mm ) and hemizygous males ( m Y) die as early embryos; heterozygous females ( m+ ) are unaffected. Heterozygous females ( m+) are mated with normal males. Which of the following statements most accurately describes the sexes of the living offspring? A) There will be equal number of males and females B) There will be twice as many males as females C) There will be twice as many females as males D) There will be no male offspring born
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Page 2 of 9 5) Members of a family have a condition in which the second toe is longer than the big toe. The trait is found in every generation, but it does not always appear in family members with the associated genotype. In some people, the second toe is longer in both feet; in others only one foot has the affected toe, This gene is A) incompletely penetrant B) dominant C) variably expressed D) all of the above E) none of the above 6) A man with blood type A and a woman with blood type B could never produce a child with blood type A) O. B) A. C) B. D) AB. E) none of the above
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This test prep was uploaded on 04/18/2008 for the course ANSI 3423 taught by Professor Desilva during the Spring '08 term at Oklahoma State.

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Exam 3 - Write your name on the back of the last page Exam...

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