The following enzymes play important roles in DNA replication: DNA polymerase Primase Ligase Helicase In what order do they work during replication?
A. DNA polymerase, primase, ligase, helicase
B. Primase, helicase, ligase, DNA
polymerase
C. DNA polymerase, helicase, primase,
ligase
D. Helicase, primase, DNA polymerase,
ligase
E. Ligase, helicase, DNA polymerase,
primase
D
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Why is the Hardy-Weinberg equation more accurate in predicting genotypic frequencies in the short run than in the long run?
A) The equation does not take epistasis into consideration. B) The Hardy-Weinberg equation is based on Mendel's second law of inheritance. C) The equation can be applied only to traits determined by single genes. D) Populations do not conform to the assumptions of the Hardy-Weinberg law.
The tissue found in the center of a eudicot root is
a. xylem. b. endodermis. c. cortex. d. phloem. e. pericycle.
Briefly discuss the cardiac cycle. Include the time of the phases and what occurs in the atria and the ventricles. Define and use the terms systole and diastole.
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