Yes, I do have the questions for biology Lesson 6: Chromosomes and DNA quiz. I'm not sure if they are the same questions you have though.
1. The table in figure 12-3 shows the results of measuring the percentages of the four bases in the DNA of several different organisms some of the values are missing from the table based on chargaffs rule, the percentages of guanine bases in chicken DNA should be around...?
2. Based on chargaffs rule, the percentage of cytosine in the DNA of the bacterium S. Lutea in figure 12-3 should be around...?
3. What structural problem prevents adenine from pairing with guanine?
The bases are both long.
4. Rosalind Franklin contributed to the understanding of DNA by...?
Producing images of DNA molecules using x-rays.
5. What is true about the relationship of adenine and thymine?
Adenine and thymine are a base pair.
6. Which of the following discoveries provided a critical clue to Watson and crick in solving the structure of DNA?
Chargaffs base ratios.
7. A DNA strand with the sequence A-T-T-G-C-T would be complementary to which of the following?
T-A-A-C-G-A
8. DNA from one species differs from the DNA of another species in its...?
Base ratios.
9. Which of the following shows the correct sequence of events?
Griffiths transformation experiment→ Chargaffs base ratio analysis→ Watson and Crick model of DNA.
10. Describe how nucleotides and hydrogen bonds affect the structure of DNA.
..
I hope this helps, if not I hope someone else can help you! :)