7. DNA and Chromosome Structure

Which of the following statements correctly describes the structure and function of DNA?

Which of the following nitrogenous bases is found in DNA but not in RNA?

Which type of bond is primarily responsible for holding the two strands of a DNA molecule together?

After DNA replication, how do the two resulting DNA molecules compare to each other?

Which of the following correctly arranges the components to form a DNA molecule?

In DNA structure, the twisted ladder shape of DNA is called a:

Which nitrogenous base is unique to RNA, and which is unique to DNA?

In the DNA double helix, what primarily holds complementary base pairs (A–T and G–C) together across the two strands?

In the context of DNA structure, DNA is classified as which type of biological macromolecule?

In the structure of DNA, cytosine always pairs with which of the following bases?

Which type of bond connects the two complementary strands of DNA together?

In the DNA double helix often described as a twisted ladder, what molecules form the “stairs” (rungs) of the ladder?

The double helix of DNA is an example of which level of structure?

In DNA, cytosine (C) always pairs with which nitrogenous base?

Which of the following is a characteristic of DNA?