Multiple Choice
A regulatory cascade of gene expression is when
A) the activation of one gene in turn regulates the expression of other genes, which may in turn regulate the expression of even more genes.
B) an enhancer acts on more than one gene.
C) a gene is constitutively expressed.
D) the same gene in different cells show a different expression pattern.
E) protein repression complexes do not contain enzymes that remove acetyl groups.
Correct Answer:
Verified
Correct Answer:
Verified
Q29: In the lac operon of E.
Q30: Eukaryotic genes<br>A) are monocistronic.<br>B) code for a
Q31: A mutation occurs in the operator region
Q32: Regulation of galactose-metabolising enzymes is achieved by<br>A)
Q33: Regulation of the genes responsible for galactose
Q35: In the regulation of the lac operon
Q36: DNA-binding regulatory proteins or transcription factors<br>A) are
Q37: If the operator region of the trp
Q38: Some genes are expressed at constant levels
Q39: A zinc finger DNA binding domain is<br>A)