In the process of transcription, promoters are specific sequences of ________ that are recognized by ________
A) DNA / DNA polymerase
B) RNA / DNA polymerase
C) DNA / sigma factors
D) RNA / ribosomes
Answer: C
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Ctenophores capture their food with feeding tentacles
a. True b. False
Genes in euchromatic regions are:a
transcriptionally inactive. b. duplicated c. transcriptionally active. d. repressed. e. unregulated.
Which of the following is CORRECT regarding the viral envelope?
A) It contains only viral proteins. B) It contains only host cell proteins. C) It is composed of sterols. D) It is composed of cellular phospholipid membrane, cellular and viral proteins. E) It is composed of sterols of viral proteins only.
Which of the following diseases is considered an autoimmune disease triggered by bacterial infection?
A) glomerulonephritis caused by the group A streptococci B) scarlet fever C) rheumatic fever D) impetigo E) toxic shock syndrome