In a species of Drosophila, genes q and r are found on the same chromosome 20 centimorgans apart. A cross was made between the following individuals: What proportion of the offspring would you expect to have the wild-type phenotype?

A) 0.10
B) 0.20
C) 0.40
D) 0.80
E) None of these


A

Biology & Microbiology

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When copies of a gene are found at different locations on the same or different chromosomes, the phenomenon is

called _____.

a. dispersed duplication b. dispersed localization c. duplicate localization d. gene dispersion e. random dispersion

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The world’s oldest continuously standing tree is a giant sequoia

a. True b. False

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Atherosclerosis has its most serious effects in the ____

a. extremities b. coronary arteries c. pulmonary arteries d. brain e. heart muscle cells

Biology & Microbiology

Which of the following observations is not part of natural selection as posed by Darwin?

A. Individuals within a population differ in terms of reproductive success. B. Individuals within a species exhibit variation. C. Organisms compete for available resources. D. Organisms become adapted to conditions as the environment changes. E. All of these observations are part of natural selection as posed by Darwin.

Biology & Microbiology