Lesson completed.

You got 0 of 10 possible points.
Your score was: 0 %

Well good luck Charlie … see u at the resit

Question Results

Score 0 of 10

Question:

BBS1005 SIP QUIZ PT 1

Response:

What does UBF binding signal in the context of nonsense mediated decay?

AnswersYour AnswerCorrect
Incorrect mRNA splicing and initiation of of degregation programming 
The cutting site after alternative splicing 
UPF is not involved in nonsense mediated decay

How are housekeeping proteins transcribed in a cell?

AnswersYour AnswerCorrect
Constitutively 
Regulated 

What type of signaling involves hormones ?

AnswersYour AnswerCorrect
Paracrine 
Autocrine 
Endocrine 
Synaptic 

Select the regulatory protein(s) which activate (s) transcription of the eve gene ?

AnswersYour AnswerCorrect
Bicoid
Giant 
Kruppel 
Hunchback 

What are the components of the gene expression regulating area on DNA?

AnswersYour AnswerCorrect
Promoter and trans regulatory sequences 
Terminator and trans regulatory sequences 
Promoter and cis regulatory sequences 
Terminator and cis regulatory sequencing 

To exert their function, transcription regulators have to interact with the DNA helix , to which part of the helix do they usually bind? 

AnswersYour AnswerCorrect
Minor groove 
Major groove 

Indicate if the following statement is true or false : Opérons are common in eukaryotes 

AnswersYour AnswerCorrect
True 
False 

A regulatory protein binds to a specific RNA sequence and blocks access of the splicing machinery to a splice junction , what type of regulation is alternative RNA splicing does this example illustrate ? 

AnswersYour AnswerCorrect
Positive regulation 
Negative regulation 

Select all the true statements regarding the 3" untranslated region of RNA 

AnswersYour AnswerCorrect
It usually contains the signals responsible for the mRNA localization 
3' UTR extends from the stop codon to the start of the poly A tail 
3' extends from the 5' cap to the start codon 
It represents a coding sequence 

Why is one of the hélices of the helix turn helix proteins called the recognition helix ?

AnswersYour AnswerCorrect
It binds to the major groove of DNA 
It binds to the minor groove of DNA 

How do the monomers of the leucine zipper proteins form a dimmer which is capable of binding DNA?

AnswersYour AnswerCorrect
Presence of hydrophobic interactions 
Presence of hydrophillic interactions 
Presence of covalent binds between monomers 

To what DNA sequences do general transcriptional factors bind?

AnswersYour AnswerCorrect
Promoter regions 
Cis regulatory sequences 

Which transcriptional regulator binds to the TATA box by the means of TBP to initiate transcription ?

AnswersYour AnswerCorrect
TF2A
TF2E
TF2D
TF2B

How can the binding of transcriptional regulators be stimulated ?

AnswersYour AnswerCorrect
DNA breathing 
Previous binding of the transcriptional regulators 
Transformation of the euro chromatine into hétérochromatin 

How can the level of activity of Cdk be described in the case of specific cyclin binding ?

AnswersYour AnswerCorrect
Partially active 
Fully active 

The precursors of which type of micro RNA are synthesized by RNA polymerase 2 ?

AnswersYour AnswerCorrect
miRNA 
siRNA 
both 

Which part of the RISC complex has the function to cut the targeted RNA molecule ?

AnswersYour AnswerCorrect
miRNA 
Other components 
Argonaute protein 
siRNA 

Which type of RNA is synthesized by cutting the precursor molecules by Dicer protein?

AnswersYour AnswerCorrect
mRNA
miRNA
siRNA 

Which protein transforms the primary miRNA to pre-miRNA?

AnswersYour AnswerCorrect
Exportin 5
Argonaute 
Drosha 
Dicer

What is the function of the Mdm2 protein?

AnswersYour AnswerCorrect
Inhibition of p53
Phosphorylation of p53
Signaling DNA damage
Activation of p53

What does the extra embryonic mesoderm form from?

AnswersYour AnswerCorrect
Cytotrophoblast cells 
Hypoblast cells 
Heuser's membrane 

Where do the cells which will form the defenitive yolk sac originate from?

AnswersYour AnswerCorrect
Epiblast cells 
Hypoblast cells from the first migration 
Hypoblast cells from the 2nd migration 

Which early embryonic tissue is the origin of the cardio genic area?

AnswersYour AnswerCorrect
Endoderm 
Somatic layer of mesoderm 
Splantic layer of mesoderm