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DNA Structure Quiz

Authored by Freddy G

Science

5th Grade

Used 2+ times

DNA Structure Quiz
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the most common form of the DNA double helix?

A-form DNA

B-form DNA

C-form DNA

D-form DNA

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the three components of a nucleotide in DNA?

Sugar, phosphate, and nitrogenous base

Sugar, phosphate, and amino acid

Sugar, lipid, and nitrogenous base

Sugar, lipid, and amino acid

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which carbon of the sugar is the nitrogenous base attached to?

1' carbon

2' carbon

3' carbon

4' carbon

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do nucleotides attach to each other in the DNA strand?

Through peptide bonds

Through hydrogen bonds

Through phosphodiester bonds

Through covalent bonds

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the directionality of the DNA strand?

3' to 5'

5' to 3'

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

Neither 3' to 5' nor 5' to 3'

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which bases preferentially pair with each other in DNA?

Adenine and guanine

Thymine and cytosine

Adenine and thymine

Guanine and cytosine

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of bonds stabilize the double helix structure of DNA?

Ionic bonds

Covalent bonds

Hydrogen bonds

Peptide bonds

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