Cell Division and Cancer (LC 2027) (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is the primary purpose of DNA replication?
What is the primary purpose of DNA replication?
To create an exact copy of DNA
Where in the cell does DNA replication occur?
Where in the cell does DNA replication occur?
In the nucleus
What is the name for DNA in its long, thin fibre form when a cell is not dividing?
What is the name for DNA in its long, thin fibre form when a cell is not dividing?
Chromatin
Why is DNA replication called 'semi-conservative'?
Why is DNA replication called 'semi-conservative'?
Each DNA has one original & one new strand
According to base pairing rules, which base does Adenine pair with?
According to base pairing rules, which base does Adenine pair with?
Thymine
Which base does Guanine pair with during DNA replication?
Which base does Guanine pair with during DNA replication?
Cytosine
What is the role of DNA polymerase in replication?
What is the role of DNA polymerase in replication?
Joins nucleotides to form new strands
How many identical DNA molecules result from one round of DNA replication?
How many identical DNA molecules result from one round of DNA replication?
Two
What are the three components of a DNA nucleotide?
What are the three components of a DNA nucleotide?
Phosphate, deoxyribose sugar, base
What happens to the amount of DNA in a cell after replication?
What happens to the amount of DNA in a cell after replication?
It doubles
What is the first step in DNA replication?
What is the first step in DNA replication?
DNA double helix unwinds and uncoils
How does each original DNA strand function during replication?
How does each original DNA strand function during replication?
As a template for new strand formation