A(n) transposon is a DNA sequence that “jumps” into the middle of a gene
__________________ Indicate whether the statement is true or false.
True
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Which is the correct sequence of events for protein degradation in eukaryotes?
A. ubiquitin binds target protein ? protein unfolds and enters proteasome ? protein directed to proteasome ? protein digested ? amino acids are released and recycled B. ubiquitin binds target protein ? protein directed to proteasome ? protein unfolds and enters proteasome ? protein digested ? amino acids are released and recycled C. protein directed to proteasome ? ubiquitin binds target protein ? protein unfolds and enters proteasome ? protein digested ? amino acids are released and recycled D. protein directed to proteasome ? protein unfolds and enters proteasome ? ubiquitin binds target protein ? protein digested ? amino acids are released and recycled E. protein directed to proteasome ? protein unfolds and enters proteasome ? protein digested ? ubiquitin binds target protein ? amino acids are released and recycled
The organism shown here represents the ____
stage in the life cycle. a. sporophyte b. gametophyte c. haploid d. motile e. feeding
__________ and __________ fluid are the main
components of extracellular fluid. Fill in the blank(s) with the appropriate word(s).
Why are fungi used to clean oil spills?
A. Fungi store the hydrocarbons in their large central vacuoles. B. Fungi use the hydrocarbons in oil instead of CO2 during photosynthesis. C. Fungi use the organic molecules in the oil as food. D. The chemicals in oil kill off the fungus's competitors.