scientists of DNA

Question 1

miescher

Answer 1

isolated Nucleic from Pus (isolated DNA)

Question 2

Kossel

Answer 2

isolated 5 bases (actg) as nucleic acid, name of DNA

Question 3

levene

Answer 3

nucleic acids are made of PO4, ribose, and bases

Question 4

koltsov

Answer 4

• double helix model

Question 5

griffith

Answer 5

• transforming principle, info chromosomes transmit information in bacteria/viruses

Question 6

hammering

Answer 6

• established the nucleus as the site of hereditary

Question 7

Avery, McCarty, and Macleod

Answer 7

dna is probably a molecule of hereditary

Question 8

chargaff

Answer 8

• % A= % T and - % G =% C
• species can be identified based on this relationship

Question 9

Hershey and chase

Answer 9

• DNA is what carries genetic information for sure and not protein

Question 10

pauling

Answer 10

• triple helix model (failed)

Question 11

Wilkins, gosling, and Franklin

Answer 11

• X-ray diffraction photos showing an X-pattern suggesting a double helix ring

Question 12

Watson and crick

Answer 12

• double helix shape with sugar phosphate backbone, and bases parallel on the inside

Question 13

meselson-stahl experiment

Answer 13

• used bacteria and nitrogen to make DNA heavy, half DNA was heavy, other half was light
• the DNA was only light after another rep of replication, providing semi-conservative DNA replication is right