What emerging science studies environmentally induced modifications of a gene's activity that do not involve a change in the gene's DNA code?

a. gene modification theory
b. epigenetics
c. geneticology
d. modified genetics
e. intragenetics


b

Anatomy & Physiology

You might also like to view...

Platelets participate in hemostasis by

A. secreting nitric oxide and releasing chemicals that promote vasoconstriction. B. aggregating to form a plug and manufacturing fibrinogen. C. aggregating to form a plug and releasing chemicals that promote vasoconstriction. D. secreting tissue plasminogen activator (t-PA) whenever they come into contact with collagen. E. secreting prostacyclin, which prevents platelet aggregation on blood vessel endothelium.

Anatomy & Physiology

The right atrioventricular valve (tricuspid) regulates the opening between the ________ and the ________.

A. right atrium; left atrium B. left ventricle; right ventricle C. right atrium; left ventricle D. left atrium; left ventricle E. right atrium; right ventricle

Anatomy & Physiology

Certain cells in the liver ingest bacteria and debris from damaged cells by a process called ________.

A. biocytosis B. pinocytosis C. phagocytosis D. exocytosis E. diffusion

Anatomy & Physiology

After the nephron loop, where in the renal tubule would a urea molecule drain into next?

A) Vasa recta B) Proximal tubule C) Distal tubule D) Glomerulus

Anatomy & Physiology