Some regions of chromosomes remain highly condensed, tightly coiled, and untranscribed throughout the cell cycle. These regions are referred to as  

A.  transposable elements.
B.  single sequence repeats.
C.  non-coding DNA.
D.  short interspersed elements.
E.  constitutive heterchromatin.


E.  constitutive heterchromatin.

Biology & Microbiology

You might also like to view...

Because bacterial LPS is both hydrophilic and hydrophobic, a specialized transporting system, ________, is required for membrane transport and insertion.

A. Tol B. Lpt C. cytidine diphosphate carrier protein D. acyl-carrier protein

Biology & Microbiology

Oxygen (O2) makes up about 21% of the Earth's atmosphere. The graph below depicts changes in atmospheric O2 levels measured between the years 1990 and 2008. Which biological process accounts for the oscillating pattern observed in this dataset?

A. photosynthesis B. respiration C. More information would be needed to answer this question.

Biology & Microbiology

What are the primary structures for modifying and packaging of cellular secretions for export from the cell?

a. Golgi bodies b. ribosomes c. mitochondria d. lysosomes e. chloroplasts

Biology & Microbiology

In Georgia, what important disease is transmitted by thrips?

a. Tomato spotted wilt virus b. Cotton boll virus c. Peach mottle d. All of the above

Biology & Microbiology