The Genetic Code (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
11 questions from this quiz
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Practise the questions
11 questions from this quiz
What does the sequence of DNA bases determine?
What does the sequence of DNA bases determine?
The sequence of amino acids in proteins
How many nitrogen-containing bases are found in DNA?
How many nitrogen-containing bases are found in DNA?
Four
Which base does Adenine (A) always pair with in DNA?
Which base does Adenine (A) always pair with in DNA?
Thymine (T)
Which base does Cytosine (C) always pair with in DNA?
Which base does Cytosine (C) always pair with in DNA?
Guanine (G)
How many hydrogen bonds join Adenine (A) and Thymine (T)?
How many hydrogen bonds join Adenine (A) and Thymine (T)?
2 hydrogen bonds
How many hydrogen bonds join Cytosine (C) and Guanine (G)?
How many hydrogen bonds join Cytosine (C) and Guanine (G)?
3 hydrogen bonds
How many DNA bases form a triplet or codon?
How many DNA bases form a triplet or codon?
3 DNA bases
Which amino acid does the triplet CAA code for?
Which amino acid does the triplet CAA code for?
Valine
Which amino acid does the triplet CGA code for?
Which amino acid does the triplet CGA code for?
Alanine
What percentage of human DNA does not code for proteins?
What percentage of human DNA does not code for proteins?
Up to 97%
What role does non-coding DNA play in cells?
What role does non-coding DNA play in cells?
Regulating expression of genes