The world’s first genetically engineered pharmaceutical product was ______.   A) humulin B) HGH C) tPA D) EPO

Of these steps, which occurs 1st in the production of a recombinant plasmid?   A) cloning B) cutting DNA into fragments C) isolation of a plasmid from a bacterium D) reproduction of the engineered plasmid in bacteria

The DNA codon AGT codes for an amino acid carried by a tRNA with the anticodon ________.   A) TCU B) AGU C) TCA D) AGT

After replication, ________.   A) each new DNA double helix consists of two old strands B) each new DNA double helix consists of one old strand and one new strand C) each new DNA double helix consists of two new strands D) one new DNA double helix consists of two old strands and the other new DNA double helix consists of two new strands

What protects mRNA from attack by cellular enzymes?   A) RNA splicing B) the removal of exons C) the lack of RNA-digesting enzymes in the cytoplasm D) a cap and tail

To make restriction fragments, a DNA sample is treated with ________.   A) DNA ligase B) restriction enzymes C) DNA polymerase D) lysozyme

Which of the following enzymes is responsible for RNA synthesis?   A) DNA polymerase B) ribosome C) reverse transcriptase D) RNA polymerase

The founder effect differs from a population bottleneck in that the founder effect ________.   A) requires a small population B) is a type of natural selection C) can occur only on an oceanic island colony D) involves the isolation of a small colony of individuals from a larger population

Transcription is the ________.   A) manufacture of a strand of RNA complementary to a strand of DNA B) manufacture of two new DNA double helices that are identical to an old DNA double helix C) modification of a strand of RNA prior to the manufacture of a protein D) manufacture of a protein based on information carried by RNA

The original source of genetic variation that serves as the raw material for natural selection is ________.   A) mutation B) gene flow C) geographic isolation D) random fertilization