DNA – Deoxyribonucleic Acid (Grade 12 NSC Matric Life Sciences): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What does DNA stand for?
What does DNA stand for?
Deoxyribonucleic acid
Which three components make up a single nucleotide?
Which three components make up a single nucleotide?
Phosphate, sugar, nitrogenous base
Which nitrogenous base always pairs with adenine (A)?
Which nitrogenous base always pairs with adenine (A)?
Thymine (T)
Which nitrogenous base is the complementary pair for guanine (G)?
Which nitrogenous base is the complementary pair for guanine (G)?
Cytosine (C)
What is the name of DNA's distinctive twisted ladder structure?
What is the name of DNA's distinctive twisted ladder structure?
Double helix
What forms the 'rungs' or steps of the DNA ladder?
What forms the 'rungs' or steps of the DNA ladder?
Nitrogenous bases
Where is the majority of DNA found in a cell?
Where is the majority of DNA found in a cell?
In the nucleus
What is the primary function of DNA?
What is the primary function of DNA?
Store hereditary information
What type of bonds hold complementary base pairs together?
What type of bonds hold complementary base pairs together?
Weak hydrogen bonds
Who proposed the double helix model of DNA in 1953?
Who proposed the double helix model of DNA in 1953?
Watson and Crick