DNA Repair Mechanisms and Damage

DNA Repair Mechanisms and Damage

Assessment

Interactive Video

Biology, Science

9th - 12th Grade

Hard

Created by

Jackson Turner

FREE Resource

The video explains how DNA in cells is frequently damaged and the various mechanisms cells use to repair these errors. It covers different types of DNA errors, such as nucleotide mismatches and double-strand breaks, and the specialized enzymes involved in repair processes. Environmental factors like UV radiation and chemicals can also cause DNA damage. The video highlights the importance of DNA repair in preventing diseases like cancer and discusses how beneficial mutations can drive evolution.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many times can DNA in a single cell get damaged in a day?

Hundreds of times

Thousands of times

Tens of thousands of times

Millions of times

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What can DNA damage lead to if not repaired?

Increased metabolism

Cancer

Enhanced immunity

Improved vision

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a common type of DNA error during replication?

Protein folding

Lipid synthesis

Base mismatches

Carbohydrate breakdown

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which enzyme is responsible for detecting and correcting base mismatches?

DNA ligase

RNA polymerase

DNA polymerase

Helicase

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What environmental factor can cause chemical changes in nucleotides?

Wind

Magnetic fields

Ultraviolet light

Sound waves

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the process called when a single damaged base is repaired?

Base excision repair

Homologous recombination

Nucleotide excision repair

Mismatch repair

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of damage does UV light cause to DNA?

Single-strand breaks

Base mismatches

Double-strand breaks

Adjacent nucleotide bonding

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