Assume you mix red blood cells, antibodies against the red blood cells, and complement in a test tube. What would you expect to see?
A) shrinkage (crenation) of the red blood cells
B) phagocytosis
C) opsonization of the red blood cells
D) lysis of the red blood cells
E) agglutination of the red blood cells
Answer: D) lysis of the red blood cells
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In genomic research the term contig refers to overlapping nucleotide sequences that are not adjacent in the genome and are formed from smaller fragments.
Answer the following statement true (T) or false (F)
A virus differs from a bacterium in that a virus ________
A) develops resistance to antibiotics B) is not a living organism C) causes pneumonia D) does not have DNA or RNA
Which of the following takes place as an ice cube cools a drink?
A) Molecular collisions in the drink increase. B) Kinetic energy in the liquid water decreases. C) A calorie of heat energy is transferred from the ice to the water of the drink. D) The specific heat of the water in the drink decreases. E) Evaporation of the water in the drink increases.
Which of the following is a characteristic of larval echinoderms?
A) bilateral symmetry B) spiral cleavage C) gastrovascular cavity D) exoskeleton E) lophophore