Unit Test Answers

Which is a frameshift mutation?

Which of these is the primary site of protein synthesis?

Which describes something that occurs during translation?

James is working with the lac operon of Escherichia coli (E. coli). He places the bacteria on a plate of growth media. Based on the current understanding of this operon, which hypothesis would be useful for James to test?

What can a person do to limit exposure to X-rays?

Which best summarizes the process of protein synthesis?

How many genes make up the human genome?

Which of the following correctly organizes these genetic terms in order from smallest to largest?

A forensic scientist is trying to find out the number of adenine bases in the DNA sample that he obtained from a crime scene.What can he assume about the number of adenine?

What was Friedrich Miescher's contribution to the discovery of the genetic code?

Which is an arrangement of genes consisting of an operator, a promoter, and a repressor?

What must occur for protein translation to begin?

Which best matches a type of genetic material with its description?

Maria is concerned because she has been exposed to a small amount of radiation during an X-ray. What is her doctor most likely to tell her?

Many different types of mutations can occur within the body. Cystic fibrosis is a genetic disorder that is caused by different mutations within the CFTR gene. One mutation in the CFTR gene that leads to cystic fibrosis causes translation to end earlier in the gene sequence. Which type of mutation causes this translation error that leads to cystic fibrosis?

Which represents a strand of RNA bases?

According to Chargaff's rule, base pairing in DNA should resemble which of the following?

Many different types of mutations can occur within the body. Sickle cell anemia is a disease that occurs when a mutation in a base pair of the hemoglobin beta gene causes a single replacement of the amino acid glutamic acid by the amino acid valine. As a result of this mutation, the individual’s blood cells take on a sickle shape under certain conditions and form clusters that can block blood vessels and cause organ damage. Which type of mutation causes sickle cell anemia?

Which of the following incorrectly matches the term with its location?

As DNA is replicated, which DNA base pair will bond to cytosine?

Which nucleic acid provides the master code for protein synthesis?

The diagram shows a nucleic acid in the shape of a helix.Which sugar is present in the nucleic acid that is represented in the diagram?

What is the role of RNA?

DNA is a nucleic acid polymer composed of which repeating structural unit?

Many different types of mutations can occur within the body. Tay-Sachs disease is a deadly disorder that is caused by a missing codon in the gene coding for production of the hex A enzyme in the body. Which type of mutation is responsible for causing Tay-Sachs disease?