Unit 4 DNA & RNA Flashcards

Front

Anticodon

Back

A 3 nucleotide sequence on a tRNA molecule that is complementary to a corresponding codon on mRNA.

Front

Base pairing rules

Back

Adenine pairs with thymine and guanine pairs with cytosine (A=T, C=G).

Front

Central Dogma

Back

Genetic information flows in one direction: DNA, to RNA, to Protein.

Front

Codon

Back

A 3 nucleotide sequence on mRNA or DNA which together form a genetic code.

Front

DNA Polymerase

Back

An enzyme that adds complementary DNA nucleotides to a strand of DNA during replication.

Front

Double helix

Back

Physical structure of DNA that has two parallel strands intertwined around a common axis.

Front

Frameshift mutation

Back

A genetic mutation that occurs due to an insertion or deletion of genetic information, causing the reading frame to change.

Front

Helicase

Back

Enzyme responsible for unwinding DNA strands allowing for replication, repair, or transcription to take place.

Front

Messenger RNA

Back

The type of RNA that is transcribed from the DNA in the nucleus and sent to the ribosome to create a protein.

Front

Mutagen

Back

An agent that causes a genetic mutation.