DNA and Protein Synthesis

Question 1

Dna replicatio has 3 steps

Answer 1

1. initiation
2. elongation
3. termination

Question 2

what is ORC

Answer 2

Origin recognition complex - similar to Ecoli
recognizes the origin
replication element on the replication sequences

Question 3

Helicase

Answer 3

facilitates the unwinding of the double stranded DNA to single. replication fork

Question 4

What is MCM

Answer 4

Mini chromosome maintenance complex

Question 5

Is MCM a type of Helicase. Yes or No

Answer 5

Yes, it is a type of helicase

Question 6

What is RPA

Answer 6

Replication protein A- Single stranded binding protein

Question 7

what is reanneal

Answer 7

To convert (nucleic acid) from a single-stranded to a double-stranded form, especially after denaturation.

Question 8

What is the function of RPA

Answer 8

prevents the strand of the dna to reaneal

Question 9

an enzyme that adds a stretch of RNA molecules that assits in polymerazation

Answer 9

Primase

Question 10

DNA polymerase

Answer 10

replicative enzyme DNA dependent/ uses dna as template to make double stranded dna molecule

Question 11

Does DNA polymarase check if correct base parining is occuring

Answer 11

YEs

Question 12

what is the main replicative enzyme

Answer 12

DNA polymerase Delta

Question 13

Ligase

Answer 13

enzyme that forms 2 DNA fragmets by catalyzing the formation of ester bonds

Question 14

Enzymes and Proteins for RNA production

Answer 14

RNA Polymerase

Question 15

is tha carrier of the genetic code

Answer 15

MRNA

Question 16

is a collection of codons

Answer 16

Genetic code

Question 17

this is the Start codon

Answer 17

AUG

Question 18

for 20 AA there should be

Answer 18

20 Codon

Question 19

how many nucleotides are there in 1 codon

Answer 19

3

Question 20

Usually stop codons

Answer 20

UAA

Question 21

TRNA is sometimes called

Answer 21

adapter molecule

Question 22

2 important site of Trna

Answer 22

Amino acid attachment

anti codon

Question 23

convertion of necleotide to MRNA

Answer 23

translation

Question 24

components of Translation

Answer 24

Ribosomes
Trna
Mrna

Question 25

large complexes of protein and ribosimal Rna

Answer 25

Ribosomes

Question 26

Ribosomes have 2 subunits

Answer 26

Large subunit and small subunit

Question 27

3 attachment sites of ribosomes

Answer 27

A Site P site E site

Question 28

what occupies P siye

Answer 28

peptidyl trna

Question 29

this binds an incoming aminoacyl RNA and spcifies next amino acid to be added

Answer 29

A site

Question 30

E site

Answer 30

exit site. occupied by empty TRNA

Question 31

Translations | Factors

Answer 31

proteins synthesized by other genes

Question 32

E. Elongation factprs

Answer 32

allows movement of the translation machinery

Question 33

Aid in codon recognition

Answer 33

E. initiation factors

Question 34

E. Release factors

Answer 34

recognizes stop codon and polypeptide from the machinery and aid in assembly of the complex

Question 35

process of producing a functioning polypeptide

Answer 35

Translation

Question 36

Quinolones

Answer 36

an antibiotic that targets dna replication

Question 37

what is the function of quinolones

Answer 37

blocks topoismerase II and IV

Question 38

MEtronidazle

Answer 38

inhibitor.. attaches itself to the DNA that cause it damage

Question 39

Rifampicin

Answer 39

ttargets enzyme for RNA transcriptiion in the bacteria