GENETICS (BIO 325) Fall 2009 Quiz 2 for discussion session Name_________________________________________Date________Unique#______ Write unique # you registered 51220 F 8-9a 51225 F 9-10a 51230 W 11-12p 51235 W 12-1p 1. What is the type of inheritance of the eye color (white mutant and red wild type) inheritance of Drosophila? a. autosomal dominant b. autosomal recessive c. X-linked dominant d. X-linked recessive 2. ① affected individuals usually have unaffected parents ② the pattern of inheritance is often horizontal with several generations of unaffected individuals, but the several siblings in one generation are affected ③ the trait is found equally in both males and females, ① ② and ③ describe, a. autosomal dominant b. autosomal recessive c. X-linked dominant d. X-linked recessive (3-4) In petunia, R/R is Red, R/r is pink, r/r is white. Red pure line was crossed with white pure line. Then the resulting F1 has pink flower color phenotype. 3. What is the phenotypic ratio when R/r is testcrossed with r/r?
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