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Structure of DNA Molecules

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Questions and Answers

What type of sugar is found in the structure of DNA?

Sucrose

Deoxyribose (correct)

Ribose

Glucose

Which of the following correctly describes the orientation of the DNA strands?

Both strands run in the same direction

The strands run in opposite directions (correct)

Both strands are twisted clockwise

The strands run parallel to each other

Which base pairs with adenine in DNA?

Uracil

Guanine

Thymine (correct)

Cytosine

How are nucleotides in a DNA chain connected?

<p>By bonds between 3' and 5' carbons of sugars</p> Signup and view all the answers

What would be the complementary DNA sequence for the strand GTCA?

<p>CAGT</p> Signup and view all the answers

Study Notes

Structure of DNA Molecules

DNA is a double helix made of two polynucleotide chains.
The chains run antiparallel to each other.
The bases pair in a complementary way (A with T, and G with C).
The sequence of bases in one chain dictates the sequence in the other chain.

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Description

This quiz explores the fundamental structure of DNA molecules, highlighting the double helix formation, base pairing, and the antiparallel nature of the DNA strands. Test your knowledge on how the arrangement of nucleotides influences genetic information.