A photosystem II complex is under normal light conditions, how often might you expect that it needs to be repaired?

a. 10 minutes
b. 20 minutes
c. 30 minutes
d. 60 minutes


Ans: b. 20 minutes

Biology & Microbiology

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Identical twins are an example of gene cloning

Indicate whether the statement is true or false

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Using fetal DNA from the mother's blood for prenatal testing is a noninvasive procedure

a. True b. False Indicate whether the statement is true or false

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Which trophic level would be best represented by saprophytic fungi?

a. decomposer b. detritivore c. primary consumer d. primary producer e. secondary consumer

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RNAi is commonly used in which experimental strategy?

a. gene overexpression b. DNA sequencing c. gene knockout d. gene knockdown e. microarray analysis

Biology & Microbiology