Question

1. Steroid hormone receptors are examples of activators that bind to which regulatory response element:

a. steroid binding domain

b. DNA binding domain

c. protein binding domain

d. enhancers

e. silencers

2. DNA sites bound by regulatory transcription factors are:

a. promoters

b.cis-acting elements

c. poly-A tails

3. The stability of mRNA can be enhanced by:

a. a short poly-A tail

b.presence of short bits of complementary RNAs (miRNA)

c.addition of acetyl groups

d. all of the above

e. none of the above