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DNA Structure Quiz

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Questions and Answers

What is the main function of genes in DNA?

To pair nitrogenous bases

To condense DNA into chromosomes

To form the structure of DNA

To carry genetic information (correct)

Why is base pairing crucial for the structure of DNA?

To condense DNA into chromatin

To maintain the double helical structure (correct)

To determine the sugar-phosphate backbone

To regulate gene expression

Where does the transcription process, converting DNA into mRNA, occur?

In the nucleus (correct)

In the cytoplasm

In the mitochondria

In the ribosome

Which elements make up a nucleotide in DNA?

Sugar, phosphate group, nitrogenous base Signup and view all the answers

What are the nitrogenous bases classified as in DNA?

Purines and pyrimidines Signup and view all the answers

What is the purpose of DNA replication?

To create two identical copies of DNA for cell division Signup and view all the answers

Which enzyme is responsible for breaking the hydrogen bonds between the bases of DNA during replication?

Helicase Signup and view all the answers

What is the directionality of the leading strand during DNA replication?

5'-3' Signup and view all the answers

Which molecule contains uracil as one of its nitrogenous bases?

mRNA Signup and view all the answers

Who played a significant role in uncovering the double helical structure of DNA?

Rosalind Franklin Signup and view all the answers