Scientists currently hypothesize that the first enzymes were composed of
1.DNA.
2.protein.
3.RNA.
4.lipid.
5.carbohydrates.
3
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When comparing the genomes of prokaryotes verse eukaryotes, it can be accurately stated that
A. eukaryotic genomes are larger than prokaryotic genomes. B. eukaryotic genomes are smaller than prokaryotic genomes. C. the size of the organism determines the size of the genome. D. larger and more complex organisms have more genes than smaller, less complex organisms.
Meteorites seem to be primarily composed of material very similar to the material in asteroids
a. True b. False Indicate whether the statement is true or false
Why are monosaccharides used by body cells?
A) to build membranes B) to produce enzymes C) for energy production D) to store energy
Part of a chromosome lacking a centromere breaks away and does not reattach to another chromosome
a. Crossing-over b. Inversion c. Translocation d. Nondisjunction e. Deletion