4303483
Descrição
Quiz por gyorgycrack, atualizado more than 1 year ago
|
Criado por gyorgycrack
mais de 8 anos atrás
|
|
Questão 1
Questão
Which of these are substrates of transcription of DNA?
Responda
-
ATP, CTP, GTP and UTP
-
AMP, CMP, GMP and UMP
-
ATP, CTP, GTP and TTP
-
AMP, CMP, GMP and TMP
-
None of these
Questão 2
Questão
What is able to do the enzyme RNA polymerase II?
Responda
-
1.) Unwind the helix of DNA
-
2.) Catalyze the synthesis of one molecule of DNA
-
3.) Correct and error in the transcription
-
1.) and 2.) are true
-
All are true
Questão 3
Questão
What is a transcription factor?
Responda
-
A protein that will bind to DNA and RNA polymerase
-
A region in DNA sequence that will indicate where is the start of transcription
-
A region in DNA sequence that will indicate where is the end of transcription
-
A molecule that will induce the formation of what is called "bubble of transcription"
-
One enzyme that is necessary to phosphorylate RNA polymerase
Questão 4
Questão
RNA polymerase will be phosphorylated just after the "bubble of transcription" is formed
Responda
- True
- False
Questão 5
Questão
Which of these statements is not true?
Responda
-
5' capping consists in introduce a protection in the end of the non-mature RNA to avoid the degradation of DNA
-
An AAA (An) tail (Non-coding end sequence) is introduced to eliminate some sequence introduced in the intron
-
After RNA molecule is finished, there is going to be introduced a polyadenyl tail in the 5' end
-
The intron of DNA will be cut by a process called splicing
-
One exon is the area of the sequence of DNA that is transcripted and translated
Questão 6
Questão
Which codon indicate when the sequence starts?
Responda
-
UUA
-
UGA
-
CCG
-
AGA
-
AUG
Questão 7
Questão
How many possible reading frames exist?
Responda
-
1
-
2
-
3
-
4
-
5
Questão 8
Questão
During initiation of translation...
Responda
-
mRNA is going to bind to the small ribosomal subunit
-
mRNA is going to bind to the large ribosomal subunit
-
An amino acid enters in the Site A of the ribosome
-
Methionine is placed in the Site E of the ribosome
-
An amino acid linked to a tRNA enters to the Site P of the ribosome
Questão 9
Questão
During elongation, the second amino acid in the protein will enter in the Site A of the ribosome linked to a tRNA
Responda
- True
- False
Questão 10
Questão
If a molecule of insulin is synthesized, what does it lose when it reach the place where is needed?
Responda
-
Methionine
-
Signal peptide
-
A fragment of the sequence, because a fragmentation is done
-
Its inicial n-dimensional shape (a refolding of the protein is made)
-
Any of these
Questão 11
Questão
Which is the name of the molecules that refold proteins?
Responda
-
Chaperons
-
Aggregates
-
Folders
-
Cleavage factors
-
Refolding factors
Quer criar seus próprios Quizzes gratuitos com a GoConqr? Saiba mais.