Notes History of DNA

Multiple Choice

How do you think past scientific discoveries have influenced what we know about DNA today?

• DNA was discovered in the 21st century.
• DNA is solely understood through philosophical debates.
• Scientific discoveries have no impact on DNA knowledge.
• Past scientific discoveries have significantly advanced our understanding of DNA, leading to breakthroughs in genetics and biotechnology.

Multiple Choice

Why is it important to understand the process of scientific discovery when studying the history of DNA?

• Because it helps us appreciate how knowledge builds over time

• Because it shows that science is always correct from the start

• Because it proves that old discoveries are no longer relevant

• Because it makes learning science easier

Multiple Choice

Who discovered the first cell?

• Robert Hooke

• Friedrich Miescher

• Robert Brown

• Erwin Chargaff

Multiple Choice

Which scientist discovered DNA and what unusual material did he use in his research?

• Charles Darwin; fossilized bones
• Isaac Newton; gravitational waves
• James Watson and Francis Crick; X-ray diffraction images
• Albert Einstein; chemical compounds

Fill in the Blanks

Adenine bonds with

in DNA base-pairing.

Multiple Choice

Which scientists are credited with discovering the double helix structure of DNA, and whose data did they use without permission?

• James Watson and Francis Crick; Rosalind Franklin

• Erwin Chargaff; Robert Brown

• Robert Hooke; Friedrich Miescher

• Rosalind Franklin; Erwin Chargaff

Multiple Choice

How did Rosalind Franklin contribute to the discovery of the structure of DNA?

• She wrote a book detailing the history of DNA research.
• She discovered the double helix structure through chemical analysis.
• Rosalind Franklin contributed by capturing X-ray diffraction images of DNA that revealed its helical structure.
• She invented the first DNA sequencing technique.

Multiple Choice

Which of the following discoveries is correctly matched with the scientist?

• Robert Brown - Nucleus of the cell

• Erwin Chargaff - X-ray picture of DNA

• Rosalind Franklin - DNA base-pairing

• James Watson - Discovered the first cell

Multiple Choice

Why did Maurice Wilkins receive the Nobel Prize for the discovery of the structure of DNA, but not Rosalind Franklin?

• Because Wilkins contributed more experimental data than Franklin

• Because Franklin's work was not recognized at the time

• Because only three people can share a Nobel Prize

• Because Franklin was not alive when the prize was awarded

Open Ended

Why wasn’t Rosalind Franklin given credit for her part in the discovery of the structure of DNA?

Open Ended

What questions do you still have about the history of DNA or the scientific process after today's lesson?