Molecular Biology Concepts Quiz

Translation is a step in protein synthesis, not a type of mutation.

Amino acids consist of an amino group, carboxyl group, hydrogen atom, and variable R group, not a phosphate group.

Restriction enzymes cleave DNA at specific recognition sequences.

Uracil is found in RNA but not in DNA.

Central dogma states that DNA is transcribed into RNA, which is translated into proteins.

Helicase unwinds the double helix structure of DNA.

tRNA brings amino acids to the ribosome for protein synthesis.

DNA polymerase adds nucleotides to the 3' end of the growing DNA strand.

RNA polymerase catalyzes the synthesis of RNA from a DNA template.

PCR is used to amplify a specific segment of DNA.

DNA ligase seals the gaps between Okazaki fragments in the lagging strand.

Shine-Dalgarno sequence facilitates the binding of mRNA to the ribosome in bacteria.

Degeneracy of the genetic code allows multiple codons to code for the same amino acid, providing redundancy and error tolerance.

tRNA is involved in translation, not in the lac operon regulation.