A drug that intercalates into DNA has the following effects. Which one leads to the others?
a. It disrupts transcription
b. It disrupts translation
c. It interferes with DNA replication
d. It causes mutations
e. It alters proteins

Guida verificata passo dopo passo

Step 1: Understand what it means for a drug to intercalate into DNA. Intercalation involves the insertion of molecules between the base pairs of the DNA double helix, which can physically distort the DNA structure.

Step 2: Recognize that the primary effect of intercalation is on DNA itself, particularly on processes that directly involve DNA, such as replication and transcription, because the DNA structure is altered.

Step 3: Identify that disrupting DNA replication (option c) is the most direct consequence of DNA intercalation, since the replication machinery cannot properly read or copy the distorted DNA.

Step 4: Understand that disruption of replication can lead to mutations (option d) because errors may be introduced when the DNA is copied inaccurately due to the intercalation.

Step 5: Realize that mutations and disrupted transcription (option a) can subsequently affect translation (option b) and protein structure/function (option e), but these are downstream effects following the initial interference with DNA replication.

Risposta video verificata per un problema simile:

Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.

Durata del video:

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

DNA Intercalation

DNA intercalation involves the insertion of molecules between DNA base pairs, distorting the double helix structure. This physical disruption can block enzymes like DNA polymerase and RNA polymerase, affecting processes such as replication and transcription.

Video consigliato:

04:01

DNA Polymerases

DNA Replication and Transcription

DNA replication is the process of copying the DNA before cell division, while transcription is the synthesis of RNA from DNA. Intercalation can hinder these processes by preventing proper enzyme binding or progression along the DNA strand.

Video consigliato:

03:37

Introduction to DNA Replication

Downstream Effects on Mutation and Protein Synthesis

Disruption of replication can cause mutations due to errors or incomplete copying, while transcription disruption affects mRNA production, leading to altered translation and protein synthesis. Thus, initial DNA damage cascades into mutations and abnormal proteins.

Video consigliato: