DNA

Question 1

Monomer of DNA

Answer 1

nulceotide

Question 2

Nucleotide

Answer 2

Phosphate head
Pentose sugar
Nitrogenous base

Question 3

Bonds are formed in

Answer 3

Condensation Reactions

Question 4

Bonds formed

Answer 4

Phosphodiester bonds

Question 5

How many nitogenous bases does DNA have?

Answer 5

4

Question 6

Purines

Answer 6

Adenine

Guanine

Question 7

Pyrimidines

Answer 7

Thymine

Cytosine

Question 8

Purines pair with

Answer 8

Pyrimidines

Question 9

Adenine pairs with

Answer 9

Thymine

Question 10

Guanine pairs with

Answer 10

Cytosine

Question 11

A and T hydrogen bonds?

Answer 11

2

Question 12

G and C hydrogen bonds?

Answer 12

3

Question 13

DNA

Answer 13

genetic material

coded information for all characteristics of an organism

Question 14

Large molecule

Answer 14

More information

Question 15

Infinetly Unique

Answer 15

Bases and their Order

Question 16

Sequence Possibilities

Answer 16

4 to the power of the sequence length

Question 17

Human Genome

Answer 17

2.9 billion base pair long

Question 18

DNA is stable

Answer 18

DNA is stable

Question 19

Helical/Coiled

Answer 19

gives compact shape

Question 20

Long/Large molecule

Answer 20

Stores large amount of information

Question 21

Sugar-Phosphate backbone

Answer 21

gives strength to strands

Question 22

Double stranded with hydrogen bonds in the middle

Answer 22

protects hydrogen bonds and makes molecule stable

Question 23

Sequence of bases

Answer 23

allows information to be stored

Question 24

Complemtary base pairing

Answer 24

enables information to be replicated/transcribed

Question 25

Hydrogen bonding

Answer 25

allows chains to be split for replication/transcription | molecule unzips easily

Question 26

Many Hydrogen bonds

Answer 26

together give molecule stability | weak by themselves but strong in numbers

Question 27

DNA Replication

Answer 27

DNA Helicase unwinds the double helix Hydrogen bonds between base pairs are broken Free nuclotides bind with exposed complemetary bases forming hydrogen bonds A to T and G to C DNA Polymerase forms phosphodiester bonds between the phosphate group on one nucleotide and the sugar on another nucleotide This continues all the way down the DNA molecule until an exact replica of the Dna molecules has been made

Question 28

Semi Conservative Replication

Answer 28

one of the 2 strands of the double helix is old and original while the other is newly synthesised one parent and one new starnd

Question 29

Direction of DNA synthesis

Answer 29

5' to 3' one direction stands are anti parallel so it looks like they are opposite but the are not