DNA Replication, Protein Synthesis, and Mutations (LC 2027) (Leaving Cert Biology): Quizzes
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12 questions from this quiz
What is the correct sequence of information flow in the central dogma of molecular biology?
What is the correct sequence of information flow in the central dogma of molecular biology?
DNA → RNA → Protein
Where does transcription occur in eukaryotic cells?
Where does transcription occur in eukaryotic cells?
In the nucleus
What is the role of RNA polymerase during transcription?
What is the role of RNA polymerase during transcription?
Reads DNA & builds complementary mRNA
Which base does RNA use instead of thymine?
Which base does RNA use instead of thymine?
Uracil (U)
Where does translation take place?
Where does translation take place?
At ribosomes in the cytoplasm
What is a codon?
What is a codon?
A group of 3 bases on mRNA
What is the function of the anticodon region on tRNA?
What is the function of the anticodon region on tRNA?
Matches complementary mRNA codon
What is the main function of mRNA?
What is the main function of mRNA?
Carries genetic info to ribosomes
What is a mutation?
What is a mutation?
A sudden change in DNA structure/amount
Which of these is an example of ionising radiation that acts as a mutagen?
Which of these is an example of ionising radiation that acts as a mutagen?
X-rays
Which condition is an example of a point mutation?
Which condition is an example of a point mutation?
Cystic fibrosis
What type of chromosomal mutation involves a fragment attaching to a non-homologous chromosome?
What type of chromosomal mutation involves a fragment attaching to a non-homologous chromosome?
Translocation