1. structure of DNA

1. THE ___________:

1. PHOSPHATE group
2. A 5 sided ___________ called ___________
3. Four different ___________

1. ___________
2. ___________
3. ___________
4. ___________

1. Basic shape

1. like a twisted ___________

1. Evidence for this model:

1. Edwin Chargaff – ___________

1. ___________ composition studies
2. found 1 to 1 ratio of

1. ___________
2. ___________

1. Rosalind Franklin – ___________

1. ___________ photography of DNA
2. Showed us the ___________

1. Linus Pauling – ___________

1. (___________ nobel winner)
2. made first model of ___________
3. ___________
4. Suggested ____________________

1. James Watson and Francis Crick – ____

1. made the first ___________ model
2. got the ___________ right
3. made first model of ___________

1. DNA ___________

1. ___________ the DNA molecule
2. the entire process is controlled by ___________
3. STEPS OF REPLICATION

1. the molecule ___________ right down the middle
2. the separated strands act as templates or "___________"
3. new __________pair up accordingly
4. enzymes ___________ the two new strands
5. two ___________ copies

1. ___________ of DNA

1. making ___________ from DNA
2. ___________ is used to move the code
3. ___________ RNA (mRNA)

1. takes the DNA code from the nucleus to the ___________

1. ___________ RNA (tRNA)

1. uses the DNA code to bring the building blocks of ___________ to the mRNA

1. Differences between DNA and RNA

1. Three main differences

(MOST BASIC RULE OF BIOLOGY)

DNA à RNA à ___________ à ___________