Answer each question by clicking the correct blue button. Only the first answer selected is graded.

2.  Which of the following statements is true?

A. The nitrogen bases that make up the DNA nucleotides of plants are much different from the bases found in animals.
B. The more closely related two organisms are, the more alike the order of their DNA nucleotides.
C. Changes in genes do not affect any of the traits of an individual.
D. A given sequence of bases can result in a number of different amino acids.

3.  Which of the following analogies is true?

A. The copy of the DNA is like a blueprint of the RNA code.
B. DNA is like workers on an assembly line.
C. Nucleotides are the building blocks of nitrogen bases.
D. The structure of DNA can be compared to a twisted ladder.

4.  Why is DNA replication important?

A. Replication forms the characteristic structure of a strand of DNA.
B. The process changes messenger RNA into transfer RNA.
C. A cell’s DNA must be duplicated so that each new cell in the next generation of cells receives a complete copy of the parent cell’s DNA.
D. Replication is the process that results in the formation of a protein.

5.  Which of the following bases pairs with adenine in RNA?

A. Thymine.
B. Guanine.
C. Uracil.
D. Cytosine.

6.  Which of these processes does NOT require DNA replication?

A. Mitosis.
B. Meiosis.
C. Cell Division.
D. Cell Growth.

7.  Which of the following processes results in an RNA copy of a DNA strand?

A. Translation.
B. Transcription.
C. Replication.
D. Mitosis.