The 5' upstreamregions of transcriptionally active genes generally donot exhibit which of the following characteristics?
A. contain binding sites for known regulatory proteins
B. relatively fewer nucleosomes
C. increased in vitro sensitivity to DNase I
D. increased concentration of histone H1
D
You might also like to view...
Why do growth rates appear to be declining in many human populations?
A) Families are choosing to have fewer children. B) Death rates are increasing due to disease epidemics and famines. C) Birth rates are decreasing due to famine. D) The carrying capacity has been reached.
In the 1800s, northern Minnesota was covered with heavy forests. After the forests were logged off, the land was sold for farms. The majority of the farms failed because the land became waterlogged. Why did this happen?
What will be an ideal response?
What is the function of the diaphragm on a compound microscope?
a) Magnifies the specimen b) Focuses light through the specimen c) Holds the microscope slide in position d) Controls the amount of light entering the condenser
Transfer of random pieces of DNA mediated by phage is known as
A) transformation of competent cells. B) generalized transduction. C) conjugation. D) transposition. E) specialized transduction.