7. DNA and Chromosome Structure

Which two components make up the backbone of a DNA molecule?

In the structure of DNA, which nitrogenous base pairs with cytosine?

Which of the following is NOT a component of a DNA nucleotide?

In double-stranded DNA, adenine (A) always pairs with which base via hydrogen bonds?

Which option correctly describes Watson–Crick base pairing in double-stranded DNA?

Which type of bond is responsible for holding together the nucleotides within a single strand of DNA?

In the DNA double helix, what type of bond holds each individual DNA strand together along its sugar-phosphate backbone?

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

How are the two strands of nucleic acid in DNA held together?

Given the DNA strand 5'-ATCGGTA-3', what would be the sequence of its complementary DNA strand?

Which set correctly lists the four nitrogenous bases found in DNA?

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

Which set correctly lists the four nitrogenous bases found in DNA?

Which type of bond primarily holds the two strands of DNA together in the double helix?

In DNA structure, which molecule is NOT found as a nitrogenous base in DNA?