For each of the following statements, list ALL of the possible answers (there ma

Question

For each of the following statements, list ALL of the possible answers (there may be more than one) from the list below:

Co-mediators

a. Which are DNA elements (ie stretches of DNA sequence) related to transcription?

b. Which are required for proper transcription?

c. Whihc are involved in increasing levels of transcription?

d. Which involve proteins that do NOT bind directrly to DNA?

e. Which have activational domains?

f. Which are proteins?

Table of Possible answers:

Co-mediators

Regualatory Transcription factors- repressors DNA polymerase III Ribosomes Enhancers Shine-Delgarno sequence general transcription factors silencers kozak sequence TFIID promoters lac operator Regulatory transcription factors- activators

Explanation / Answer

a) General transcription factors, Kozak sequence, Ribosomes, TFIID

b) Enhancers, General transcription factors, Kozak sequence, promoters, TFIID, lac operator

c) DNA polymerase III, kozak sequence, promoters, silencers

d) TFIID

e) Enhancers, Regulatory transcription factors- activators, Regualatory Transcription factors- repressors?,

f) Ribosomes, Co-Mediators, DNA polymerase III?, Enhancers, TFIID, Silencers,

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