Answers>Biology>A Level>Article

Briefly describe the steps of DNA replication and the enzymes involved.

DNA helicase breaks the hydrogen bonds that bind the two strands of the DNA double helix.Free nucleotide complementary base pairs are added to the newly exposed single strands of DNA.Binding of the free nucleotides to the complementary base pairs is catalyzed by DNA polymerase.

Answered by • Biology tutor

2240 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

Give 3 ways in which the properties of ATP make it a suitable source of energy in biological processes.

What is the difference between an endocrine and exocrine gland?

Maltose is hydrolysed by the enzyme maltase. Explain why maltase catalyses only this reaction (3 marks)

What is crossing-over?

We're here to help

+44 (0) 203 773 6020

Company Information

Popular Requests

Maths tutor Chemistry tutor Physics tutor Biology tutor English tutor GCSE tutors A level tutors IB tutors Physics & Maths tutors Chemistry & Maths tutors GCSE Maths tutors

CLICK CEOP

Internet Safety

Payment Security

Cyber

Essentials

MyTutor is part of the IXL family of brands:

IXL

Comprehensive K-12 personalized learning

Rosetta Stone

Immersive learning for 25 languages

Wyzant

Trusted tutors for 300 subjects

Education.com

35,000 worksheets, games, and lesson plans

Vocabulary.com

Adaptive learning for English vocabulary

Emmersion

Fast and accurate language certification

Thesaurus.com

Essential reference for synonyms and antonyms

Dictionary.com

Comprehensive resource for word definitions and usage

SpanishDictionary.com

Spanish-English dictionary, translator, and learning resources

FrenchDictionary.com

French-English dictionary, translator, and learning

Ingles.com

Diccionario ingles-espanol, traductor y sitio de apremdizaje

ABCya

Fun educational games for kids

© 2026 by IXL Learning