Which of the following is actively transcribed?

A. euchromatin
B. heterochromatin
C. nucleosomes


A. euchromatin

Biology & Microbiology

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The variables that investigators try to keep the same for both the experimental and the control groups are

(a) independent. (b) controlled. (c) dependent. (d) a and c.

Biology & Microbiology

On a phylogenetic tree, each node (branchpoint) represents a divergence event, and the length of the branches represents the number of molecular changes that have taken place between the nodes.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Which of the following is the correct order of steps of gas transport and exchange?

A. ventilation, diffusion across the respiratory surface, circulation, diffusion between blood and cells B. diffusion across the respiratory surface, ventilation, diffusion between blood and cells, circulation C. ventilation, circulation, diffusion across the respiratory surface, diffusion between blood and cells D. circulation, diffusion across the respiratory surface, ventilation, diffusion between blood and cells E. diffusion between blood and cells, circulation, ventilation, diffusion across the respiratory surface

Biology & Microbiology

Beta amyloid plaques are most often seen in persons suffering from ____

a. Parkinson's disease b. Alzheimer's disease c. heart disease d. muscular dystrophy e. multiple sclerosis

Biology & Microbiology