In 1910,Morgan Did a Series of Experiments with the Fruit

question 57

Multiple Choice

In 1910,Morgan did a series of experiments with the fruit fly Drosophila,an organism where females are XX and males are XY.When a mutant male fly with white eyes was crossed with a wild type female with red eyes,none of the F₁ progeny had white eyes but 18% of the F₂ progeny had white eyes.Unexpectedly,all of these white-eyed F₂ flies were males.Based on these results,Morgan concluded that white eyes is caused by a recessive X-linked allele.Suppose Morgan had found that half of the F1 progeny had white eyes but all of these white-eyed F₁ flies were females.In this case,a valid hypothesis would be

• A)White eyes is caused by a recessive Y-linked allele.
• B)White eyes is caused by a dominant Y-linked allele.
• C)White eyes is caused by a dominant X-linked allele.
• D)White eyes is caused by a dominant autosomal allele.

Understand the concept of plate boundaries and their types.

Identify and describe the geological features formed at different plate boundaries.

Analyze the likelihood of volcanic formation at various plate boundaries.

Understand the importance and impact of ethical codes in organizational behavior.

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