Which of these transposable elements do not carry genes for functions other than those needed for transposition?

A. Retrotransposons
B. Insertion sequences
C. Composite transposons
D. Conjugal transposons


Answer: B

Biology & Microbiology

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A) use rubisco to catalyze the reaction between O2 and RuBP. B) have a lower rate of photosynthesis than plants using the C3 photosynthetic pathway. C) divide photosynthesis between mesophyll and bundle sheath cells. D) are mostly trees.

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Design a complete ecosystem that would sustain a number of living organisms for several years in a sealed container

The only thing that can be added is sunlight. Explain why you have selected each organism. What will be an ideal response?

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In following the hydrologic cycle,

a) CO2 is released in respiration b) H2O is returned to soil via evaporation c) H2O is returned to air via transpiration d) CO2 is fixed in photosynthesis

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Which of the following serves as the "translator" or intermediary between an mRNA codon and an amino acid?

A. siRNA B. snRNA C. rRNA D. snRNPs E. tRNA

Biology & Microbiology