According to the Baltimore system, there are ______ major groups of viruses

A. 4
B. 5
C. 6
D. 7
E. 8


D

Biology & Microbiology

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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.

Biology & Microbiology

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

Biology & Microbiology

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

Biology & Microbiology

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.

Biology & Microbiology