Which enzyme is involved in proofreading during DNA replication?

A) 5' to 3' exonuclease
B) 3' to 5' exonuclease
C) 5' to 3' endonuclease
D) 3' to 5' endonuclease
E) DNA polymerase


B) 3' to 5' exonuclease

Biology & Microbiology

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Red light and phytochrome are involved in which of the following plant growth responses? Check all that apply.  

_____  thigmotropic responses _____  inhibition of seed germination _____    elongation of etiolated shoots _____  detection of crowding by neighboring plants

Biology & Microbiology

Four of the five answers are correct statements about E. coli. Select the exception

a. It grows easily in a laboratory. b. It is a rod-shaped species of proteobacteria. c. It is widely used in industrial biotechnology. d. It is capable of photosynthesis. e. It is a normal inhabitant of the gut.

Biology & Microbiology

Four of the five answers listed below are associated with digestive disorders. Select the exception

a. Crohn's disease b. basal metabolism c. lactose intolerance d. cystic fibrosis e. food allergies

Biology & Microbiology

A host is not considered diseased until an infection changes one's state of health

Indicate whether the statement is true or false

Biology & Microbiology