Unit Test — Unit test Answers

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

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?

Which chromosomal defect is caused when part of a chromosome breaks off at either end and attaches to another chromosome?

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

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 is a frameshift mutation?

Which describes something that occurs during translation?

Which represents a strand of RNA bases?

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?

Which of these is the primary site of protein synthesis?

Which best summarizes the process of protein synthesis?

Consider the diagram.Which chromosomal change is represented?

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

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?