Clavulanic acid inhibits
A. formation of peptidoglycan cross linkages.
B. cell membrane synthesis.
C. peptidoglycan synthesis.
D. beta-lactamase activity.
Answer: D
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Glycogen is stored in ____
a. liver tissue only b. muscle tissue only c. adipose tissue only d. liver and muscle tissue e. liver, muscle, and adipose tissue
What is the role of the enzyme ligase in DNA replication?
A. It matches new bases to the old strand by complementary base-pairing. B. It folds the DNA into a coiled structure. C. It unzips the double-stranded DNA. D. It seals any breaks in the sugar-phosphate backbone. E. It breaks the hydrogen bonds that hold the two strands of the DNA together.
The theory of natural selection was proposed
A. independently by Darwin. B. jointly by Darwin and Wallace. C. independently by Mendel. D. jointly by Wallace and Lamarck.
Arrange the steps in the process of constructing a phylogenetic tree using the distance method in the correct order
i. A distance matrix is created. ii. A tree is constructed which arranges segments or branches derived from pair-wise distance comparisons. iii. The distance between species is measured using character state changes. iv. Phylogenetic inference software is used to choose the best tree. a. i, ii, iii, iv c. iii, i, ii, iv b. ii, iii, iv, i d. iv, iii, ii, i