Question 1
In a DNA double helix, which base pairs with cytosine through three hydrogen bonds?
Correct Answer:
Guanine
Question 2
The two strands of a DNA double helix are described as antiparallel because they run in:
Correct Answer:
Opposite directions, one 5' to 3' and the other 3' to 5'
Question 3
Which components make up the sugar-phosphate backbone of a single DNA strand?
Correct Answer:
Deoxyribose sugars linked by phosphate groups
Question 4
DNA replication is described as semi-conservative because each new DNA molecule contains:
Correct Answer:
One original strand and one newly synthesised strand
Question 5
What is the role of a primer in DNA replication?
Correct Answer:
A short nucleotide sequence that provides a 3' end for DNA polymerase to add to
Question 1
Exam overview

About this Exam

Prepare with the Higher Biology Practice Questions - Scottish Higher Biology Exam practice quiz. This question bank includes 100 questions covering because, cells, described, describes, and enzyme. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

More details

Additional Information

Higher Biology Practice Questions - Scottish Higher Biology Exam

This practice set contains 100 questions from the matching question bank and focuses on because, cells, described, describes, and enzyme. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

Quiz information

Frequently Asked Questions

The complete question count is available after full access is unlocked.
No fixed duration is currently configured for this quiz.
Question explanations are included where they are available in the quiz content, helping you review the reasoning after answering.
Yes. You can retake the practice test again as you continue studying during your available access period.
After your access is confirmed, you can continue into the complete practice exam from this quiz flow.
Unless explicitly stated otherwise, this page provides independent practice material for study and exam preparation and is not the official examination itself.
Keep studying

Related Questions