PracticeQuiz content is free on an ad-supported model.
Unfortunately, we can't support ad blocker usage because of the impact on our servers. If you'd like to continue, please disable your ad blocker and reload page.
121. In sheep, the allele for white wool (W) is dominant, and the allele for black wool (w) is recessive. A farmer has mated two Suffolk sheep for a few years. These matings have resulted in six offspring, four with white wool and two ith black wool. One parent has white wool and the other has black wool.Which of the following could be the genotypes of the parent sheep?
122. There is a limit to how large any given population can grow. Which of the following statements best explains why apopulation must eventually stop growing?
123. In pea plants, the genes for seed color and seed shape are on different chromosomes. Which of the following explains why the genes for these traits are not inherited together?
124. On remote islands, immigration and emigration usually do not have a large effect on population sizes. A bird population on a remote island remains at a relatively constant size year after year. Which of the following most likely describes the birthrate and the death rate for this population?
125. If scientists search other planets for possible life, they are likely to focus on the presence of molecules containing which of the following elements?
