The metaphase stage of mitosis is characterized by the 

A. arrangement of chromosomes along a line.
B. arrangement of chromosomes on a plane.
C. division of the centromeres.
D. duplication of genetic information.


B. arrangement of chromosomes on a plane.

Biology & Microbiology

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What special adaptation(s) has/have Thermoplasma evolved to survive in hot acidic environments?

A) Thermoplasma stabilize their cytoplasmic membrane by incorporation of tetraether lipoglycans in the cytoplasmic membrane. B) Thermoplasma have a reinforced cell wall containing basic amino linkers in the peptidoglycan. C) Thermoplasma excrete hydrogen ions and import hydroxyl ions. D) Thermoplasma are highly motile to avoid destruction.

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The chromosomes are moving to opposite

sides of the cell during

a. anaphase. b. metaphase. c. interphase. d. prophase. e. telophase

Biology & Microbiology

Birds are the only modern amniotes with ____

a. wings b. feathers c. a four-chambered heart d. ectothermic metabolism e. more than one of these

Biology & Microbiology

Which of the following is not a function of an antibody?

A) activate complement cascade B) attract phagocytes C) stimulate helper T cells D) neutralize toxins

Biology & Microbiology