Please choose the best option for each part. Part A. Which is NOT true of myogen

ID: 3511337 • Letter: P

Question

Please choose the best option for each part.

Part A. Which is NOT true of myogenic regulatory factors

a) located in the nucleus

b) all decrease when satellite cells are activated

c) must dimerize to bind DNA

d) important in determining cells to become fibers

Part B. Growth of a muscle fiber involves

a) regulation by growth factors and hormones

b) inactivation of myocyte enhancer factors

c) adding new motor units

d) upregulation of atrophy genes

Part C. Muscle regeneration and muscle development are similar except for the following:

a) MRF’s are increased

b) cell proliferation occurs

c) inflammation is a key process

d) resulting fibers are multinucleated

Part D. A satellite cell is most like a

a) mesodermal cell

b) fibroblast

c) myoblast

d) myotube

e) somite

Answer A: The choice is (b) i.e it is not true because myogenic regulatory factors increase when satellite cells are activated.

Answer B: The choice is (c) i.e. growth of muscle fibres involves adding new motor units.

Answer C: The choice is (a).

Answer D:

The answer is (e) i.e A satellite cell is most like somites.