By definition, linkage disequilibrium means that
A) alleles at separate loci occur together more than predicted by random chance.
B) alleles at separate loci segregate randomly.
C) two allelic variants are at least 60 m.u. apart.
D) two allelic variants are 50 m.u. apart.
A) alleles at separate loci occur together more than predicted by random chance.
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A damaged red blood cell is removed from circulation by
A) phagocytosis by macrophages in the spleen. B) basophils releasing histamine to stimulate breakdown of RBCs. C) returning to red bone marrow and autolyzing. D) being actively transported into macrophages in the liver and spleen. E) endocytosis directed by monocytes.
Marfan Syndrome is a disorder with a collection of symptoms caused a single gene mutation. This genetic disorder is an example of ________.
Fill in the blank(s) with the appropriate word(s).
Uranium is a metallic element that is used in nuclear reactors and nuclear weapons. The vast majority of uranium found on Earth is in the form of uranium-238, an isotope with a mass number of 238, while the uranium that is used for nuclear reactors and weapons is uranium-235, an isotope with a mass number of 235. What is the atomic difference between uranium-235 and uranium-238?
A. uranium-235 has three fewer protons than uranium-238 B. uranium-235 has three fewer neutrons than uranium-238. C. uranium-235 has three fewer electrons than uranium-238. D. uranium-235 has three fewer atoms than uranium-238.
Aseptic packaging utilizes which of the following to sterilize laminated paper or plastic prior to filling with food?
A) hot HCl solution B) gamma radiation C) hot hydrogen peroxide solution D) X rays E) autoclave