Discoveries in Molecular Biology Quiz

Watson and Crick proposed the double helix structure of DNA in 1953.

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

DNA ligase plays a crucial role in sealing the gaps between Okazaki fragments during DNA replication.

DNA polymerase catalyzes the addition of nucleotides to the growing DNA strand during replication.

DNA helicase is responsible for unwinding the DNA double helix during replication.

PCR (Polymerase Chain Reaction) is used to make multiple copies of a specific DNA segment.

Helicase is an enzyme that unwinds the DNA double helix during replication.

DNA sequencing is a method to determine the order of nucleotides in a DNA molecule.

Ligase seals the nicks between Okazaki fragments, creating a continuous DNA strand during replication.

dRNA is not a recognized type of RNA; it is a term mixing DNA and RNA.

Gel electrophoresis is a method to separate DNA fragments based on their size and charge.

Reverse transcriptase converts RNA into DNA, playing a key role in retroviral replication.

The central dogma describes the flow of genetic information from DNA to RNA to protein.

Hamilton Smith discovered restriction enzymes in 1970.

Northern blot is a method to study the expression of specific genes by analyzing RNA.

Beadle and Tatum proposed the idea that each gene controls the synthesis of one enzyme.

Plasmids are small, circular DNA molecules that can carry foreign DNA into host cells.

Werner Arber discovered the first restriction enzyme in 1968.

CRISPR-Cas9 is a genome editing tool that can precisely cut DNA at specific locations.