How are DNA and RNA different? A) DNA has a single chain and the base thymine, while RNA has a double chain and the base cytosine instead or uracil.
B) DNA has deoxyribose sugar and 4 bases while RNA has ribose sugar and only two bases.
C) DNA has double chains, deoxyribose sugar, and thymine while RNA has a single chain, ribose sugar, and uracil.
D) RNA is found in the nucleus of the cell and DNA is found in the cytoplasm of the cell.

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If a set of instructions that determines all of the charactersitics of an organism is comparedto a book, and a chromosme is compared to chaper in the book, then what might be compared to a paragraph in the book?

Aresearcher has developed two stains for use with seed plants. one stains sporophyte tissue blue; the other stains gametophyte tissue red. if the researcher exposes pollen grains to both stains, and then rinses away the excess stain, what should occur? a) the pollen grains will be pure red. b) the pollen grains will be pure blue. c) the pollen grains will have red interiors and blue exteriors. d) the pollen grains will have blue interiors and red exteriors.