(02.02 MC)Which of the following best explains a scientific theory?

(03.06 MC)Blood type in humans is an example of a trait that has multiple alleles. The alleles for type A blood and type B blood are codominant, and type O blood is recessive to both type A and type B. If a girl with type AB blood has a brother with type O blood and a sister with type B blood, which of the following genotypes could it be possible for their parents to have?

(03.03 MC)If a tRNA molecule has an anticodon which reads GCU, what was the codon of the mRNA molecule?

(03.05 MC)Which of the following best describes what happens to a cell’s genetic material during the process of meiosis II?

(02.01 MC)During winter’s freezing temperatures, some plants can remove water from their cells to reduce the amount of water that will freeze inside them. Why would plants need to do this?

(03.05 MC)In an ecosystem, a wide range of organisms coexist. In a pond ecosystem, one can find amoebae, bacteria, green algae, and fish. Which of the following is the best conclusion one can make regarding the genetic diversity of these organisms?

(02.06 LC)Which of the following identifies the purpose of anaerobic fermentation within the body?

(03.04 MC)Tobacco products have been identified as mutagens. However, some tobacco users develop cancer and some do not. The reason for this apparent inconsistency is

(01.03 MC)Which of the following best describes how the first organic molecules on the early Earth may have been formed?

(03.07 MC)A genetic disorder is an illness that is caused by which of the following?