UNIT STUDY: DNA and Organization

Question 1

What are nucleic acids?

Answer 1

Macromelcules made up for nucelotide monomers

Question 2

What is part of a nucleotide?

Answer 2

Ribose sugar + base + phosphate group

Question 3

Are nucleotides positively or negitvley charged and why?

Answer 3

Negitively charged due to negitive oxygens in phosphate group

Question 4

What are the four nitrogonous bases in DNA

Answer 4

• Thymine
• Adenine
• Guanine
• Cytosine

Question 5

What are the four nitrogonous bases in RNA

Answer 5

-Uracil
- Adenine
Guanine
Cytosine

Question 6

What are purines vs pyrimidines

Answer 6

Purines - double ringed (A and G)
Pyrimidines - single ringed (C, T, and U)

Question 7

What is the structure of DNA

Answer 7

DNA has a double helix structure with H bonds holding the nitrgonous bases together. The ends are anti-parrallel (going in oppisate directions)

Question 8

What bases bond together

Answer 8

Pyrimidines bond with purines
- G forms 3 H bonds with C
- A forms 2 H bonds with T

Question 9

What bases bond together

Answer 9

Pyrimidines bond with purines
- G forms 3 H bonds with C
- A forms 2 H bonds with T

Question 10

Prokaryotic vs Eykaryotic DNA

Answer 10

• Prokaryotic DNA is found in the cytoplasm, and often super coiled
• Eukaryotic DNA is found in the nucleas

Question 11

What are plasmids?

Answer 11

Circuluar DNA molecules that carry extra genetic information such as antibiotic resistance