Which repair mechanism is most likely affected if the enzyme DNA glycosylase is not functioning properly?
A) double-strand break repair
B) photoreactivation repair
C) base excision repair
D) SOS repair
E) nucleotide excision repair
Answer: C
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Many orchids require fungi for seeds to germinate
Indicate whether this statement is TRUE or FALSE.
All of the following methods are employed to identify pathogens in clinical specimens EXCEPT
A. biochemical tests. B. special stains and microscopy. C. culture on a variety of all-purpose, selective, and/or differential media. D. molecular testing for nucleic acids. E. immunoassays. F. There are no exceptions here. All of these methods are used to identify pathogens.
Dolphins share synapomorphies with mammals
_____________________ Indicate whether the statement is true or false.
In attempting to estimate the causal effect of employee hours worked on total units produced, you include the age of the production equipment as a control variable. Which of the following conditions would not be a good reason to include this control variable?
A. The semi-partial correlation of total units produced on age of the machine holding number of employees fixed is positive and statistically significant. B. The age distribution of the plants is highly non-normal. C. Older production equipment often requires more employees to work on them. D. Older production equipment often is less productive (i.e., produce fewer units on average).