5 Written questions
5 Matching questions
- Leading strand
- a A virus that infects bacteria; also called a bacteriophage.
- b Eukaryotic chromatin that remains highly compacted during interphase and is generally not transcribed.
- c One of two prokaryotic domains, the other being Archaea.
- d The sugar component of DNA nucleotides, having one fewer hydroxyl group than ribose, the sugar component of RNA nucleotides.
- e The new complementary DNA strand synthesized continuously along the template strand toward the replication fork in the mandatory 5'?3' direction.
5 Multiple choice questions
- The DNA strand that provides the pattern, or template, for ordering the sequence of nucleotides in an RNA transcript.
- A Y-shaped region on a replicating DNA molecule where the parental strands are being unwound and new strands are growing.
- A dense region of DNA in a prokaryotic cell.
- A protein that binds to the unpaired DNA strands during DNA replication, stabilizing them and holding them apart while they serve as templates for the synthesis of complementary strands of DNA.
- A small protein with a high proportion of positively charged amino acids that binds to the negatively charged DNA and plays a key role in chromatin structure.
5 True/False questions
DNA polymerase → An enzyme that catalyzes the elongation of new DNA (for example, at a replication fork) by the addition of nucleotides to the 3' end of an existing chain. There are several different DNA polymerases; DNA polymerase III and DNA polymerase I play major roles in DNA replication in prokaryotes.
nucleoid → A dense region of DNA in a prokaryotic cell.
bacteriophage → One of two prokaryotic domains, the other being Archaea.
Okazaki fragment → A virus that infects bacteria; also called a phage.
pyrimidine → An enzyme that joins RNA nucleotides to make the primer using the parental DNA strand as a template.