Bio Exam 3 - 1 2 3 4 5 6 Bio Exam 3 Which statement about...

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Bio Exam 3 1. Which statement about an individual that is homozygous for an allele is NOT true? a. Each of its cells possesses two copies of that allele b. Each of its gametes contains one copy of that allele c. It is true-breeding with respect to that allele d. Its parents had to be homozygous for that allele e. It can pass that allele to its offspring 2. Mendel’s law describing the segregation of traits for a given character and the independent assortment of the traits for different characters is explained by 3. In pea plants, the allele for purple flower color is dominant and that for white flower color is recessive. What ratio of offspring phenotypes would you expect from a cross between two plants with purple flowers if each of them had a parent that had white flowers? 4. During meiosis 1, the random organization of homologous chromosome pairs at the metaphase plate leads to new combinations of maternal and paternal chromosomes. This explains 5. Pea plants that produce dominant purple flowers were crossed with plants that produce recessive white flowers. As a consequence, exactly one half of the progeny had white flowers. Which of the following best explains the result? a. The phenotype of the parent with purple flowers is affected by the environment b. White flower color is the wild type phenotype c. The parent with the purple flowers is homozygous for flower color d. A test cross is needed to explain the result e. The parent with purple flowers is heterozygous for this trait 6. In general, the frequency of crossing over between two linked genes depends on
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