Which of the following repair enzymes is targeted for degradation after it reacts one time?
A. photolyase
B. AP endonuclease
C. MutH
D. DNA glycosylase
E. methyltransferase
E
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In club fungi, each club-shaped cell initially
a. is a spore. b. is a zygote. c. contains a single nucleus. d. is dikaryotic. e. undergoes mitosis to produce spores
In freshwater sponges and other simple freshwater animals, water flows into the body by __________. Fill in the blank(s) with the appropriate word(s)
The composition of lipids in the outer and inner monolayers of cell membrane lipid bilayers is
A) asymmetrical; i.e., different in each monolayer. B) identical in each monolayer. C) twice as concentrated in the inner monolayer as in the outer monolayer. D) highly random for each monolayer. E) the same for all cell plasma membranes but different from the composition in mitochondrial and chloroplast membranes.
What are attached at the centromere?
A) Homologous chromosomes B) Sister chromatids C) Daughter cells D) Genomes