According to the Baltimore system, there are ______ major groups of viruses
A. 4
B. 5
C. 6
D. 7
E. 8
D
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Enzyme specificity refers to the
a. specific name of each kind of enzyme. b. fact that enzymes catalyze one particular substrate or a small number of structurally similar substrates. c. effect of temperature on enzyme activity. d. effect of pH on enzyme activity.
Antibodies and killer T cells recognize HIV or HIV-infected cells by binding to short pieces of viral proteins displayed on the virus or the infected host cell. These short pieces of viral proteins are called ________
A) coat proteins B) virosomes C) proteosomes D) epitopes E) episomes
Usually, the first procedure a genetic counselor performs for a client is _____
a. amniocentesis b. construction of a karyotype c. biochemical testing d. construction of a pedigree based on family and medical histories e. ultrasonic imaging
Animal cells typically achieve cytokinesis by:
A. forming a cell plate across the middle of the cell. B. chromosome condensation. C. chromosome elongation. D. binary fission. E. forming a cleavage furrow that pinches the cell into two.