DNA Mutations — Unit test Answers

Francois Jacob and Jacques Monod studied Escherichia coli (E. coli) bacteria by using lab experimentation. What revision to their initial hypothesis did they come up with?

A strand of DNA contains the bases adenine, cytosine, cytosine, and guanine, in that order. Which would be the order of the bases on the opposite strand of DNA?

The structure of DNA resembles a twisted ladder. Which structural components form the rungs of the ladder?

Which flow chart correctly organizes the structures of heredity, from least to most complex?

Which agent would cause the least damage to a chromosome?

Which is an agent that causes a mutation in DNA or chromosomes?

Which accurately describes the relationship between cancer risk and exposure to mutagens?

A mutation causes a sequence of DNA that has the nucleotides TTG to be changed to TCG. The resulting protein has a different sequence of amino acids. Which type of mutation is this?

Many different types of mutations can occur within the body. An individual experiences a mutation that changes a base in a mRNA strand, but during translation the mRNA strand still creates the same protein. Which type of mutation is responsible for the change in the mRNA base?

Missense, nonsense, and silent mutations are examples of which type of mutation?

Which of the following difference between DNA and RNA allows them to perform their unique functions?

Consider the diagram.Which process is represented?

Fragile X syndrome, characterized by mental retardation, is caused by which chromosomal change?

Which base is found only in DNA?

Which best describes a codon?

What does DNA provide the code for?

Which step in transcription occurs first?

Which is not something that occurs in translation?