Author: Anonymous

In the Hardy-Weinberg formula, what does 2pq represent?   A) frequency of the dominant allele B) frequency of heterozygotes C) frequency of the recessive allele D) frequency of the homozygous dominants

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

A vaccine works by ________.   A) inhibiting bacterial reproduction B) stimulating the immune system to develop lasting defenses C) killing cells infected with a virus D) preventing translation of mRNA molecules that code for disease-causing proteins

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

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