In eukaryotes, genetic material is packaged tightly in the nucleus. Which one of the following most accurately lists the components in order of increasing size (i.e., from smallest to largest)?
A. nucleotide, DNA duplex, chromatid,
nucleosome, chromosome
B. chromosome, nucleosome, chromatid,
DNA duplex, nucleotide
C. chromosome, chromatid, nucleosome,
DNA duplex, nucleotide
D. nucleotide, DNA duplex, nucleosome,
chromatid, chromosome
E. nucleotide, nucleosome, DNA duplex,
chromatid, chromosome
D
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Some anaerobic protists obtain energy using
A. hydrogenosomes. B. cytochromes. C. mitochondria. D. All of the choices are correct.
A(n) ________ carries a specific amino acid to a ribosome, where the amino acid bonds to another.
A) mtDNA B) rRNA C) mRNA D) tRNA
Where did Earth's atmosphere originate?
a. Earth's gravity trapped gasses from passing comets. b. Gases were released from the Earth itself as it cooled. c. The atmosphere was derived from dust particles from the original gas cloud around the planet. d. Earth’s gravity trapped gasses from passing comets, gases were released from the Earth itself as it cooled, and the atmosphere was derived from dust particles from the original gas cloud around the planet. e. Gases were released from the Earth itself as it cooled and the atmosphere was derived from dust particles from the original gas cloud around the planet.
The process illustrated in Figure 3-1 is called:a
condensation. b. protein synthesis. c. hydrolysis. d. dehydration synthesis. e. denaturation