DNA and RNA mid term

Question 1

What does DNA stand for?

Answer 1

Deoxyribose Nucleic Acid

Question 2

Why do we DNA?

Answer 2

it carries genetic info and is the instruction manual for making proteins

Question 3

What are nucleotides?

Answer 3

the subunit (monomers) of the DNA

Question 4

What are the 3 parts of nucleotides?

Answer 4

A Deoxyribose sugar, a phosphate group, a nitrogenous base

Question 5

Nitrogenous bases

Answer 5

carbon rings that have nitrogen

Question 6

what are the 4 nitrogenous bases?

Answer 6

Adenine, Cytosin, Guanine, Thymine

Question 7

What are the two groups of nitrogenous bases?

Answer 7

Purines and Pyrimidines

Question 8

What are the Purines?

Answer 8

Adenine and Guanine

Question 9

What are the Pyrimidines?

Answer 9

Thymine and Cytosine

Question 10

What is the backbone of DNA made out of?

Answer 10

sugar and phosphates

Question 11

What are the steps of dNA made out of?

Answer 11

nitrogenous bases

Question 12

Complementary base pairing

Answer 12

Adenine is always bonded with Thymine and Cytosine is always bonded with Guanine

Question 13

What bonds A to T

Answer 13

2 hydrogen bonds

Question 14

What bonds C to G

Answer 14

3 hydrogen bonds

Question 15

What shape is DNA?

Answer 15

double helix, twisted clockwise.

Question 16

The 2 side of DNA are …….?

Answer 16

Anti - paralle

Question 17

Charagaffs rule

Answer 17

A = T, C = G, and DNA varies from one species to another based off the amount of A,T,C and G

Question 18

What did Waston and Crick do?

Answer 18

made a 3D image of DNA based of a x - ray diffraction image taken by Rosalind Franklin