Family trees

• What is the structure of DNA primarily composed of?

  Two strands forming a double helix
• What is meant by complementary strands in DNA?

  Same bases always pair on opposite strands
• What is DNA classified as?

  A polymer of nucleotides
• What are the three main parts of a nucleotide?

  Phosphate group, sugar molecule, base
• How many different bases are found in DNA?

  Four different bases
• What are the four bases in DNA?

  A, C, G, and T
• How do the bases pair in DNA strands?

  C pairs with G, A pairs with T
• If given the nucleotide sequence of one DNA strand, what can you determine about the opposite strand?

  You can deduce the complementary nucleotides
• What is the significance of the phosphate group and sugar molecule in DNA?

  • They remain unchanged in all nucleotides
  • They form the backbone of the DNA structure
• What will the next video cover after the structure of DNA?

  • DNA's involvement in protein synthesis
• What is the importance of understanding DNA structure for exams?

  • Many questions focus on DNA structure
  • Essential for grasping genetic concepts