What is the role of actin in eukaryotic cells?
A. It forms the centromere that holds sister chromatids together.
B. It forms the spindle that pulls chromosomes apart.
C. It is necessary for the DNA to replicate.
D. It provides strength in stretching and compression of a cell.
E. It forms the structures inside flagella that allow the bending motion for cell motion (swimming).
D. It provides strength in stretching and compression of a cell.
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The major reductive amination pathway for incorporation of nitrogen into amino acids initially involves the production of ________ from alpha-ketoglutarate.
A. tryptophan B. cysteine C. glutamate D. arginine
Gibbs free energy is defined as ________
A. the amount of energy available to do work B. the amount of energy lost as heat C. the amount of entropy D. the amount of potential energy in a system E. spontaneous energy
Enlargement of lymph nodes or spleen is often associated with
A. tularemia. B. brucellosis. C. plague. D. gastritis. E. tularemia, brucellosis AND plague.
Which of the following correctly represents the genetic make up of the cells at the end of Meiosis I? a. None of these choices
b. Diploid (n) c. Haploid (n) d. Haploid (2n) e. Diploid (2n)