If a set of genes is repressed in the presence of the controlling substance, it is referred to as ________ control.

Fill in the blank(s) with the appropriate word(s).


negative

Biology & Microbiology

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What type of sRNA often requires a chaperon protein for strong regulation activity?

A) antisense RNA B) riboswitches C) siRNA D) trans-sRNA

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Which of the following structures is NOT

found in mature sperm? a. nucleus b. acrosome with enzymes c. mitochondria d. microtubules in the tail e. ribosomes

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Microbes called the group I archaea or mesophilic Crenarchaeota that were found to oxidize ammonia in marine environments are now placed in the phylum ________.

A. Crenarchaeota II B. Euryarchaeota C. Thaumarchaeota D. Korarchaeota

Biology & Microbiology

What are the potential consequences if a person's kidney suddenly stopped secreting the normal hormones?

A. There would be a significant increase in the amount of potassium that is excreted by the kidneys. B. There would be an increase in the amount of water retained in the body, leading to edema. C. The person would have trouble regulating their blood volume and pressure due to the imbalance of salt in the bloodstream. D. All of the choices are potential consequences.

Biology & Microbiology