DNA Structure (OCR GCSE Biology A (Gateway Science Suite)): Quizzes
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12 questions from this quiz
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Practise the questions
12 questions from this quiz
What are the basic building blocks of DNA?
What are the basic building blocks of DNA?
Nucleotides
Where in the cell is DNA organised into chromosomes?
Where in the cell is DNA organised into chromosomes?
Nucleus
How many components make up each nucleotide in DNA?
How many components make up each nucleotide in DNA?
Three
Which nitrogenous base is NOT found in DNA?
Which nitrogenous base is NOT found in DNA?
Uracil
In DNA, which base pairs with adenine?
In DNA, which base pairs with adenine?
Thymine
What is a codon?
What is a codon?
A group of three bases
How many different types of amino acids are there?
How many different types of amino acids are there?
20
During transcription, which molecule copies DNA?
During transcription, which molecule copies DNA?
mRNA
Where does translation occur in the cell?
Where does translation occur in the cell?
Ribosome in cytoplasm
What is the role of tRNA during protein synthesis?
What is the role of tRNA during protein synthesis?
Carries amino acids to ribosome
Which mutation involves an extra base being added?
Which mutation involves an extra base being added?
Insertion
What is the main role of non-coding DNA?
What is the main role of non-coding DNA?
Regulating gene expression