Transcription

Question 1

Sequence of 3 bases in an mRNA are called

Answer 1

Codons

Question 2

Start codon

Answer 2

AUG

Question 3

Stop codons

Answer 3

UAA
UAG
UGA

Question 4

tRNA has 3 nucleotide bases called what

Answer 4

anticodon

Question 5

The process of copying the sequence of one strand of DNA (Template strand)

Answer 5

DNA Transcription

Question 6

mRNA copies what strand

Answer 6

Template strand

Question 7

Key element in promoter

Answer 7

TATA box

Question 8

3 kinds of polymerase

Answer 8

Polymerase I (A)
Polymerase II (B)
Polymerase III (C)

Question 9

Polymerase that catalyzes the formation of rRNA

Answer 9

Polymerase I

Question 10

Polymerase that catalyzes the formation of mRNA

Answer 10

Polymerase II

Question 11

Polymerase that catalyzes the formation of tRNA

Answer 11

Polymerase III

Question 12

Regions in DNA where RNA polymerases must bind to begin the transcription of RNA

Answer 12

Promoters

Question 13

Element of Promoter and a.k.a Hogness Box

Answer 13

TATA box

Question 14

Can initiate transcription with the use of INR and DPE

Answer 14

TATAless promoter

Question 15

INR means

Answer 15

Initiator Element

Question 16

DPE means

Answer 16

Downstream Promoter Element

Question 17

Sequence of INR

Answer 17

TCA (G or T) T( T or C)

Question 18

Sequence of DPE

Answer 18

(A or G) G (A or T) CGTG

Question 19

Forms an apparatus that binds DNA and initiates transcription

Answer 19

Transcription Factors

Question 20

Transcription Steps

Answer 20

Initiation
Elongation
Termination

Question 21

Will recognize the TATA box and bind to it

Answer 21

Transcription factor IID

Question 22

Binds to TATA box and recruits other transcription factors

Answer 22

TFIID

Question 23

Stabilizes the IID so it wont be removed

Answer 23

TFIIA

Question 24

Aids in starts sign selection and link the RNA Polymerase II

Answer 24

TFIIB

Question 25

Destabilizes non-specific interactions of RNA Polymerase II and DNA, so it wont get attached to the other parts of the DNA

Answer 25

TFIIF

Question 26

Will melt the promoter, since it is a helicase and will activate RNA Polymerase II since it is a kinase

Answer 26

TFIIH

Question 27

Enhances promoter melting and semi-controls the function of TFIIH

Answer 27

TFIIE

Question 28

When does Initiation Step end

Answer 28

At Elongation Complex

Question 29

What is added in the Elongation step

Answer 29

Nucleotides

Question 30

Termination Signal which is found after the stop codon

Answer 30

AAUAAA

Question 31

Cleaves the RNA from RNA Polymerase II

Answer 31

CPSF

Question 32

CPSF meaning

Answer 32

Cleavage and Polyadenylation Specificity Factor

Question 33

The RNA that is the direct copy of the DNA

Answer 33

Primary Transcript

Question 34

Happens at the 5’ end of the RNA and GTP is usually added shortly after RNA Polymerase makes the 5’ end primary transcript

Answer 34

RNA Capping

Question 35

Modifies the 3’ end of the primary transcript by the addition of a string of A’s

Answer 35

Polyadenylation

Question 36

Forms spliceosome

Answer 36

snRNPS

Question 37

What is added to the 5’ end of a newly copied mRNA

Answer 37

Guanosine Triphosphate cap

Question 38

What is added to the 3’ end of a newly copied mRNA

Answer 38

Poly A tail