What can you conclude if the protein with an apparent mass of 45 kDa is not detected in dividuals that lack the dominant allele?
a. that protein is probably coded for by the recessive allele
b. that protein is probably coded for by the dominant allele
c. that protein is probably expressed only when the recessive and dominant allelesare both present
b
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Quorum sensing is used by bacteria to facilitate the formation of endospores
Indicate whether the statement is true or false.
The difference between normal and sickle-cell hemoglobin is based upon the
a. number of amino acids in the molecule. b. substitution of one amino acid for another. c. number and orientation of the amino acid chains attached to the heme portion of the molecule. d. number of oxygen molecules that can be carried. e. type of bone marrow that produces it.
The primary mechanism that redistributes the flow of blood from one part of the body to another is changes in the
A. rate at which the heart beats. B. rate at which blood is removed from an area. C. strength of the heartbeat. D. diameter of arterioles.
The process by which a molecule splits into two smaller ones is
a. condensation. b. cleavage. c. functional group transfer. d. electron transfer. e. rearrangement.