DNA is a polymer formed from linked nucleotides that contains genetic information. Each nucleotide contains a sugar, phosphate, and one of four nitrogen bases (A, T, G, C). Genes are sequences of these bases that encode the production of specific proteins. DNA carries the instructions to make RNA and proteins, which determine traits by their physical effects. In humans, DNA is organized into 23 pairs of chromosomes in the nucleus of each cell.

1. Science is a story...

2. Science is a story...

3. Science is a story...

4. Science is a story...

5. Science is a story...

6. Science is a story...

7. Science is a story...

8. Science is a story...

9. Science is a story...

11. Essential Standard of DNA

12. Essential Standard of DNA
*Describe the chemical and structural properties of DNA*
DNA is a polymer formed from linked subunits (nucleotides)
Genetic info is encoded in genes based on the sequence of subunits
Each DNA molecule in a cell forms a single chromosome

13. DNA

14. DNA
Deoxyribonucleic Acid

16. DNA is
shaped like a
double
helix

17. DNA is
shaped like a
double
helix

18. DNA is a large polymer
formed by linking

19. DNA is a large polymer
formed by linking

21. Nucleotides have 3 parts:

22. Nucleotides have 3 parts:
1. Sugar

23. Nucleotides have 3 parts:
1. Sugar
2. Phosphate

24. Nucleotides have 3 parts:
1. Sugar
2. Phosphate
3. Nitrogen Base

25. Nucleotides have 3 parts:
1. Sugar
2. Phosphate
3. Nitrogen Base

26. Nucleotides have 3 parts:
1. Sugar
2. Phosphate
3. Nitrogen Base

27. Nitrogen Bases come in 4
amazing flavors (A, T, G, and
C)!

28. Nitrogen Bases come in 4
amazing flavors (A, T, G, and
C)!
Base Pairing RULES:
A-T
C-G

29. Nitrogen Bases come in 4
amazing flavors (A, T, G, and
C)!
Base Pairing RULES:
A-T
C-G

31. Genetic information is
encoded in the sequence of
nitrogen bases

32. Genetic information is
encoded in the sequence of
nitrogen bases
ATGCTTAAAGCTATA

33. Genetic information is
encoded in the sequence of
nitrogen bases
ATGCTTAAAGCTATA

34. Genetic information is
encoded in the sequence of
nitrogen bases
ATGCTTAAAGCTATA
These“coding
sequences” are
known as genes.

35. Genetic information is
encoded in the sequence of
nitrogen bases
ATGCTTAAAGCTATA
These“coding
sequences” are
known as genes.
ONLY 4 letters make up EVERY living organism!!

37. Each gene codes for the
production of a specific

38. Each gene codes for the
production of a specific
DNA

39. Each gene codes for the
production of a specific
DNA

40. Each gene codes for the
production of a specific
DNA RNA

41. Each gene codes for the
production of a specific
DNA RNA

42. Each gene codes for the
production of a specific
DNA RNA Protein

43. Each gene codes for the
production of a specific
DNA RNA Protein

44. Each gene codes for the
production of a specific
DNA RNA Protein Trait

45. Each gene codes for the
production of a specific
DNA RNA Protein Trait
Characteristics are the
physical expression of the
proteins we make!!!

46. Each gene codes for the
production of a specific
DNA RNA Protein Trait
Characteristics are the
physical expression of the
proteins we make!!!

47. Each gene codes for the
production of a specific
DNA RNA Protein Trait
Characteristics are the
physical expression of the
proteins we make!!!

48. Each gene codes for the
production of a specific
DNA RNA Protein Trait
Characteristics are the
physical expression of the
proteins we make!!!

49. Each DNA molecule in a
cell forms a single
chromosome.

50. Each DNA molecule in a
cell forms a single
chromosome.

51. Each DNA molecule in a
cell forms a single
chromosome.
There are 23 pairs of
chromosomes in the
nucleus of every
human body cell.

52. Each DNA molecule in a
cell forms a single
chromosome.
There are 23 pairs of
chromosomes in the
nucleus of every
human body cell.

54. So why care?

55. So why care?

56. So why care?

57. So why care?

58. So why care?