Exam 3A, Page 1 BTNY 210Name__________________KEY_Exam 3A KEY Lab day and time______________April 2, 2008 1. Meiosis may occur in the following part(s) of plants: a. root tips b. apical meristems c. vascular cambium d. ovulese. none of the above 2. If the 2n (diploid) number of an organism is 12, how many chromosomes will there be in each gamete? 3. Considering just one gene that has two alleles, one dominant and one recessive, if we cross a homozygous dominant individual with a homozygous recessive individual, the genotypes of the first generation (F1) will be: 4. Considering the same cross as above, the phenotypes of the F1generation should be: 5. In a dihybrid cross, how many genes can be considered? a. 4 b. 3 c. 2 d. 1 e. the number of genes considered is not related to a dihybid cross 6. In snapdragons flower color is incompletely dominant. If a white colored plant is crossed with a pink colored plant, the F1generation has:
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