A small part of the human Y chromosome contains the gene that is responsible for determining maleness. What is the name of this gene?

A) NRY B) Xist C) SRY D) medulla E) Dax


Answer: C

Biology & Microbiology

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A deficiency in a plant micronutrient  

A.  is less serious than a deficiency in a macronutrient. B.  makes that plant susceptible to herbivores. C.  can have a severe effect on plant growth. D.  results in no visible symptoms. E.  has no impact on the agriculture of a region.

Biology & Microbiology

A hole in the inner mitochondrial membrane means that there is a(n) __________ in the

concentration gradient of H+ ions.

a. increase b. decrease

Biology & Microbiology

Which of the following is mismatched?

a. sympathetic postganglionic fibers; release NE b. parasympathetic postganglionaic fibers; release NE c. parasympathetic preganglionic fibers; release ACh d. sympathetic preganglionic fibers; release ACh

Biology & Microbiology

Drupes have multiple seeds and fused carpels.

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

Biology & Microbiology