Goiter, an abnormal enlargement of the thyroid gland, is caused by a dietary deficiency in:
A) tyrosine
B) iodine
C) potassium
D) salt
Ans: B) iodine
Biology & Microbiology
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Aristotle’s lantern is a tooth-bearing structure of the
(a) sea stars. (b) tunicates. (c) acorn worms. (d) sea urchins.
Biology & Microbiology
Which of the following statements is not true concerning peptidyl transferase?
A) It is a ribozyme having catalytic activity. B) It catalyzes peptide bond formation. C) It moves the ribosome, so translation continues. D) It is associated with the large subunit of ribosomes. E) It requires no outside source of additional energy, such as ATP.
Biology & Microbiology
6 different types of synovial joints
What will be an ideal response?
Biology & Microbiology
Its a simple matter (ie thermodynamically) for vesicle to form from the endoplasmic reticulum.
a. true b. false
Biology & Microbiology