3. Which of the following statements is true? a. Females cannot have hemophilia.
b. A colorblind boy's mother must carry the gene for colorblindness.
C. A sex-linked allele cannot be dominant
d. A colorblind boy's father must carry the gene for colorblindness.

What is the best-known carbohydrate?

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

What best describes the structure of the declaration of independence?