DNA Structure and Function Assessment

DNA Structure and Function Assessment

Assessment

Interactive Video

Biology, Science, History

9th - 12th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video provides a comprehensive overview of the double helix structure of DNA, covering its introduction, historical discovery, detailed structure, and chemical nature. It explains Chargaff's rules on base pairing and discusses the characteristics and functions of DNA, including replication, gene expression, and mutation. The video also highlights the forensic significance of DNA, emphasizing its role in identifying individuals and solving crimes.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary role of DNA in living organisms?

To provide energy

To carry genetic information

To transport oxygen

To digest food

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who first isolated DNA from cells?

Erwin Chargaff

Frederick Miescher

Francis Crick

James Watson

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What did Watson and Crick contribute to the understanding of DNA?

They isolated DNA from the nucleus

They proposed the double helix model

They discovered the X-ray diffraction pattern

They identified DNA as the transforming principle

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the four nitrogenous bases found in DNA?

Adenine, Guanine, Uracil, Thymine

Guanine, Uracil, Cytosine, Thymine

Adenine, Uracil, Cytosine, Thymine

Adenine, Guanine, Cytosine, Thymine

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of bond holds the two strands of DNA together?

Hydrogen bonds

Covalent bonds

Metallic bonds

Ionic bonds

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the chemical nature of DNA?

Positively charged macromolecule

Positively charged micromolecule

Negatively charged macromolecule

Neutral macromolecule

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which characteristic is essential for DNA to function as genetic material?

It must be able to replicate faithfully

It must be able to conduct electricity

It must be soluble in water

It must be visible under a microscope

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