DNA Replication Errors

Replication errors in DNA can result from these two specific changes to DNA nucleotides?

• substitution and deletion

• transversion and insertion

• insertion and deletion

• substitution and inversion

Tags

NGSS.HS-LS3-2

What are three pieces of evidence that inheritable genetic variations result from?

• new genetic combinations through meiosis, errors in DNA replication, and mutations from environmental factors

• errors in DNA replication, genetic combinations through mitosis, and mutations from chemical exposure

• mutations from bacteria, errors in DNA translation, and genetic combinations through phosphorylation

• errors in DNA transcription and new genetic combinations from DNA methylation

Tags

NGSS.HS-LS3-2

Insertions or deletions of DNA nucleotides can cause this?

• transcriptions errors

• meiosis

• replication errors

• cell division

Tags

NGSS.HS-LS3-2

Process where double-stranded DNA molecule is copied to produce two identical DNA molecules?

• DNA transcription

• DNA translation

• DNA methylation

• DNA replication

Which enzyme fixes the Okazaki fragments?

• Helicase

• Polymerase

• Ligase

• Primerase

What is a common consequence of DNA replication errors?

• A) Genetic mutations

• B) Increased cell division

• C) Enhanced DNA stability

• D) Improved immune response

Tags

NGSS.HS-LS3-2

Which enzyme is primarily responsible for proofreading during DNA replication to correct errors?

• A) DNA helicase

• B) DNA polymerase

• C) DNA ligase

• D) DNA primase

What type of mutation occurs when a single nucleotide is replaced by another during DNA replication?

• A) Insertion

• B) Deletion

• C) Substitution

• D) Duplication

Tags

NGSS.HS-LS3-2

How can environmental factors influence DNA replication errors?

• A) By increasing the rate of DNA synthesis

• B) By causing DNA strand breaks

• C) By altering nucleotide sequences

• D) By enhancing DNA repair mechanisms

Tags

NGSS.HS-LS3-2

Which of the following is a potential result of uncorrected DNA replication errors in somatic cells?

• A) Cancer

• B) Inherited genetic disorders

• C) Increased lifespan

• D) Enhanced physical traits

Tags

NGSS.HS-LS3-2