Lab: Building Proteins from RNA — Unit test Answers

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?

Which best describes a codon?

Which step in transcription occurs first?

Which base is found only in DNA?

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?

A scientist observes a pair of separate chromosomes that have genes for the same trait arranged in the same order. However, some of the alleles for the genes are different. What is the scientist most likely observing?

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

What does DNA provide the code for?

Which is not something that occurs in translation?

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?

Which diagram correctly shows how homozygous alleles are found on homologous chromosomes?

What does a karyotype show?

Which best describes a gene?

Which does not occur during translation?

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