Exploring DNA Replication Mechanisms

Exploring DNA Replication Mechanisms

Assessment

Interactive Video

Science

6th - 10th Grade

Easy

Created by

Aiden Montgomery

Used 1+ times

FREE Resource

The video explains DNA replication, where both strands of the double helix serve as templates. Replication occurs at the replication fork, a Y-shaped structure. Helicase unwinds the DNA, allowing the leading strand to be synthesized continuously by DNA polymerase. The lagging strand, with its opposite orientation, forms Okazaki fragments that are synthesized in sections. The video simplifies the complex process by omitting some components, mentioning protective proteins and multiple Okazaki fragments.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the structure called where new DNA strands are synthesized?

Replication bubble

Replication fork

Replication zone

Replication loop

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which enzyme is responsible for separating the two DNA strands?

DNA polymerase

Ligase

Helicase

Primase

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

At what speed does helicase spin the DNA to unravel it?

1,000 rpm

15,000 rpm

5,000 rpm

10,000 rpm

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the 3' DNA strand also known as?

Coding strand

Template strand

Leading strand

Lagging strand

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which enzyme uses the leading strand as a continuous template?

DNA polymerase

Primase

Ligase

Helicase

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the sections called that the lagging strand is organized into?

Replication loops

Replication bubbles

DNA segments

Okazaki fragments

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which orientation are Okazaki fragments synthesized?

Both 3' to 5' and 5' to 3'

Random orientation

5' to 3'

3' to 5'

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