DNA and RNA

Question 1

Storing information

Answer 1

DNA stores genetic information

Question 2

Copying information

Answer 2

DNA copy’s itself

-every time a cell divides it must make an exact copy of the puple pigment gene

Question 3

gene expression

Answer 3

DNA puts genetic info to work. cells use instructions from DNA to produce enztmes that make purple pigment

Question 4

What is DNA made of

Answer 4

nucleotides joined into long strands or chains by covalent bonds. Hydrogen bonds exist between the two strands and form a base from one strand and a base from a second strand in complementary pairing

Question 5

What are the components of DNA

Answer 5

• nitrogenous base
• 5 carbon sugar-deoxyribose
• phosphate group

Question 6

Chargaffs rule

Answer 6

C=G

T=A

Question 7

Franklin

Answer 7

-stretch DNA fibers in a thin glass tube so that the strands are parallel. Next she aimed a powerful x-Ray beam and took film. Eventually she got x-ray photos. Showed DNA is x shaped

Question 8

Watson and crick

Answer 8

• built a model that explaines the specific structure and property of DNA
• Discovered that nitrogenous bases pair specifically