Next → Inheritance Patterns and Genetic Research: Mastery Test
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1
Select the correct answer from each drop-down menu.
The
A gene on a chromosome lies close to another gene controlling a different trait. This indicates that the genes are
first gene contributes to the expression of the second gene. This indicates
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The number of living organisms in a particular area is

Why do you think the puppy litter was all dark-haired?

Next pretest: evolution select the correct answer in a laboratory population of flies, the female flies are gray and the males are yellowish gray. biologists observed that all the male flies had an equal chance for reproduction, but the male flies with the brightest colors were more likely to successfully reproduce. what phenomenon could explain such a change? a sexual selection b. disruptive selection c. stabilizing selection d. directional selection