The formation of monoiodotyrosine and diiodotyrosine of tyrosine takes place on

a) Free tyrosine molecules in the Lumen
b) Free tyrosine Molecules in the follicular cells
c) Tyrosine molecules of thyroglobulin in the follicular lumen
d) Tyrosine molecules of thyroglobulin in the follicle cell
e) All of the above


Ans: c) Tyrosine molecules of thyroglobulin in the follicular lumen

Biology & Microbiology

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The gene Brachyury promotes development of the notochord and the vertebrae in vertebrate animals. Among the rodents, most species have a long tail, but capybaras have a very short tail. What is the most likely difference you might expect to see for the Brachyury gene in capybaras compared to long-tailed rodents?  

A.  A smaller range of gene expression B.  Deletion of the gene C.  Higher levels of expression D.  An expanded range of gene expression E.  Mutation to resemble the ascidian gene Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean?   Gather Content · What do you already know about the gene Brachyury?   Consider Possibilities · Consider the different answer options. Which can you rule out?   Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?   Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

Biology & Microbiology

The use of organs harvested from animals for human transplants is called ____________________

Fill in the blank(s) with correct word

Biology & Microbiology

What might be an accurate albedo measure of the surface of a glacier?

A) 0.1 B) 9.0 C) 0 D) 0.9

Biology & Microbiology

Succession happens because species in the habitat alter that habitat in ways that assist other species. There are three dynamic concepts that are of critical importance for succession to take place. They are

A. establishment, coevolution, and competitive exclusion. B. establishment, facilitation, and inhibition. C. competition, climax communities, and tolerance. D. symbiotic relationships, facilitation, and aposematic coloration. E. competition, inhibition, and coevolution.

Biology & Microbiology